…t#2434) (tendermint#2451)

This is an automatic backport of pull request tendermint#2434 done by
[Mergify](https://mergify.com).
Cherry-pick of 8bf81d423ff80a36fd13b9df07e6e9be6f497927 has failed:
```
On branch mergify/bp/v0.38.x/pr-2434
Your branch is up to date with 'origin/v0.38.x'.

You are currently cherry-picking commit 8bf81d423.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	new file:   .changelog/unreleased/improvements/2434-jsonrpc-websocket-basic-auth.md

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   rpc/jsonrpc/client/ws_client.go

```


To fix up this pull request, you can check it out locally. See
documentation:
https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

---


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---------

Co-authored-by: Matt Ketmo <matthieu@moquet.net>
Co-authored-by: Anton Kaliaev <anton.kalyaev@gmail.com>