Update the dependency and the indirect golang.org/x/net version to align
with containerd 1.7 itself, and to prevent a vulnerability being detected.

This should not generally be an issue, as the API module is used by
containerd 1.7 and up, which already depend on a more current version of
these dependencies.

full diff: containerd/ttrpc@v1.2.3...v1.2.5

Before this:

    govulncheck ./...
    Scanning your code and 251 packages across 13 dependent modules for known vulnerabilities...

    === Symbol Results ===

    Vulnerability #1: GO-2024-2687
        HTTP/2 CONTINUATION flood in net/http
      More info: https://pkg.go.dev/vuln/GO-2024-2687
      Module: golang.org/x/net
        Found in: golang.org/x/net@v0.21.0
        Fixed in: golang.org/x/net@v0.23.0
        Example traces found:
          #1: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.ConnectionError.Error
          #2: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.ErrCode.String
          #3: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.FrameHeader.String
          #4: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.FrameType.String
          #5: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.Setting.String
          #6: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.SettingID.String
          #7: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.StreamError.Error
          #8: services/version/v1/version_grpc.pb.go:13:2: version.init calls status.init, which eventually calls http2.chunkWriter.Write
          containerd#9: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.connError.Error
          containerd#10: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.duplicatePseudoHeaderError.Error
          containerd#11: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.headerFieldNameError.Error
          containerd#12: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.headerFieldValueError.Error
          containerd#13: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.pseudoHeaderError.Error
          containerd#14: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.writeData.String

    Your code is affected by 1 vulnerability from 1 module.
    This scan also found 0 vulnerabilities in packages you import and 3
    vulnerabilities in modules you require, but your code doesn't appear to call
    these vulnerabilities.
    Use '-show verbose' for more details.

After this:

    govulncheck ./...
    Scanning your code and 251 packages across 13 dependent modules for known vulnerabilities...

    === Symbol Results ===

    No vulnerabilities found.

    Your code is affected by 0 vulnerabilities.
    This scan also found 0 vulnerabilities in packages you import and 3
    vulnerabilities in modules you require, but your code doesn't appear to call
    these vulnerabilities.
    Use '-show verbose' for more details.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

Update the dependency and the indirect golang.org/x/net version to align
with containerd itself, and to prevent a vulnerability being detected.

We should keep the versions <= versions used by containerd 1.7 to prevent
forcing users of containerd 1.7 in combination with the latest version
of the API module from having to update all their dependencies, but
this update should likely be fine (and aligns with 1.7).

Before this:

    Scanning your code and 254 packages across 15 dependent modules for known vulnerabilities...

    === Symbol Results ===

    Vulnerability #1: GO-2024-2687
        HTTP/2 CONTINUATION flood in net/http
      More info: https://pkg.go.dev/vuln/GO-2024-2687
      Module: golang.org/x/net
        Found in: golang.org/x/net@v0.21.0
        Fixed in: golang.org/x/net@v0.23.0
        Example traces found:
          #1: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.ConnectionError.Error
          #2: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.ErrCode.String
          #3: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.FrameHeader.String
          #4: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.FrameType.String
          #5: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.Setting.String
          #6: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.SettingID.String
          #7: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.StreamError.Error
          #8: services/content/v1/content_ttrpc.pb.go:272:35: content.ttrpccontentClient.Write calls ttrpc.Client.NewStream, which eventually calls http2.chunkWriter.Write
          containerd#9: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.connError.Error
          containerd#10: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.duplicatePseudoHeaderError.Error
          containerd#11: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.headerFieldNameError.Error
          containerd#12: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.headerFieldValueError.Error
          containerd#13: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.pseudoHeaderError.Error
          containerd#14: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.writeData.String

    Your code is affected by 1 vulnerability from 1 module.
    This scan also found 0 vulnerabilities in packages you import and 3
    vulnerabilities in modules you require, but your code doesn't appear to call
    these vulnerabilities.
    Use '-show verbose' for more details.

After this:

    govulncheck ./...
    Scanning your code and 251 packages across 13 dependent modules for known vulnerabilities...

    === Symbol Results ===

    No vulnerabilities found.

    Your code is affected by 0 vulnerabilities.
    This scan also found 0 vulnerabilities in packages you import and 3
    vulnerabilities in modules you require, but your code doesn't appear to call
    these vulnerabilities.
    Use '-show verbose' for more details.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

`govulncheck -mode=binary` detected the following vulns, but `-mode=source` says "your code doesn't appear to call these vulnerabilities."

```
=== Symbol Results ===

Vulnerability #1: GO-2025-3503
    HTTP Proxy bypass using IPv6 Zone IDs in golang.org/x/net
  More info: https://pkg.go.dev/vuln/GO-2025-3503
  Module: golang.org/x/net
    Found in: golang.org/x/net@v0.33.0
    Fixed in: golang.org/x/net@v0.36.0
    Vulnerable symbols found:
      #1: httpproxy.config.useProxy
      #2: httpproxy.domainMatch.match
      #3: proxy.Dial
      #4: proxy.FromEnvironment
      #5: proxy.FromEnvironmentUsing
      Use '-show traces' to see the other 3 found symbols

Vulnerability #2: GO-2025-3488
    Unexpected memory consumption during token parsing in golang.org/x/oauth2
  More info: https://pkg.go.dev/vuln/GO-2025-3488
  Module: golang.org/x/oauth2
    Found in: golang.org/x/oauth2@v0.11.0
    Fixed in: golang.org/x/oauth2@v0.27.0
    Vulnerable symbols found:
      #1: jws.Verify

Vulnerability #3: GO-2025-3487
    Potential denial of service in golang.org/x/crypto
  More info: https://pkg.go.dev/vuln/GO-2025-3487
  Module: golang.org/x/crypto
    Found in: golang.org/x/crypto@v0.31.0
    Fixed in: golang.org/x/crypto@v0.35.0
    Vulnerable symbols found:
      #1: ssh.Client.Dial
      #2: ssh.Client.DialContext
      #3: ssh.Client.DialTCP
      #4: ssh.Client.Listen
      #5: ssh.Client.ListenTCP
      Use '-show traces' to see the other 48 found symbols

Your code is affected by 3 vulnerabilities from 3 modules.
This scan found no other vulnerabilities in packages you import or modules you
require.
Use '-show verbose' for more details.
```

NOTE: Go version requirement is now bumped up from 1.21 to 1.23

Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>