process-exporter already supports the -recheck flag which makes it run
the whole matching logic on each scrape. This is very useful when trying
to monitor processes which change their names shortly after start.

Sadly, -recheck carries a rather high performance penalty. At the same
time, process name changes are very common directly after start, are
seldomly expected during usage.

This commit introduces -recheck-with-time-limit which rechecks processes
N seconds after their start and stops doing so afterwards. This combines
the accuracy benefits of -recheck with the performance gains of not
using -recheck.

…sion. Use CGO_ENABLED in its config instead of tags.

* Upgrade prometheus/procfs dependency and therefore set Go1.21 in go.mod

* Fix broken compatibility with prometheus/procfs

* Update README for Go1.21

---------

Co-authored-by: Thomas Delbende <thomas.delbende@bleemeo.com>

Various GHA improvements.

Bumps [golang.org/x/net](https://github.com/golang/net) from 0.22.0 to 0.23.0.
- [Commits](golang/net@v0.22.0...v0.23.0)

---
updated-dependencies:
- dependency-name: golang.org/x/net
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Nick Cabatoff <nick.cabatoff@gmail.com>