Added lyrical release entries for async node and ament_python_install_package (backport #6520)

[mergify]

Added lyrical release entries for ros2/rclpy#1620 and ament/ament_cmake#587.

---

This is an automatic backport of pull request #6520 done by Mergify.

[mergify]

Cherry-pick of 57ee23f has failed:

On branch mergify/bp/lyrical/pr-6520
Your branch is up to date with 'origin/lyrical'.

You are currently cherry-picking commit 57ee23f.
  (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)

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   source/Releases/Release-Lyrical-Luth.rst

no changes added to commit (use "git add" and/or "git commit -a")

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

[christophebedard]

@Mergifyio rebase

[mergify]

rebase

✅ Branch has been successfully rebased

[christophebedard]

I've backported #6486 to Lyrical (#6527) because it was missing, as we can see from the merge conflict here, but it looks like the only way to recreate/update this backport PR is to close it and re-create it

[christophebedard]

I've backported #6486 to Lyrical (#6527) because it was missing, as we can see from the merge conflict here, but it looks like the only way to recreate/update this backport PR is to close it and re-create it

That worked in #6520 (comment), see #6528