Update README and ci_status without rolling (backport #70)

[mergify]

Since rolling / jazzy is no longer supported, we can remove it from the README.

---

This is an automatic backport of pull request #70 done by Mergify.

[mergify]

Cherry-pick of 4e0c45b has failed:

On branch mergify/bp/humble/pr-70
Your branch is up to date with 'origin/humble'.

You are currently cherry-picking commit 4e0c45b.
  (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:
	modified:   ci_status.md

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   README.md

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