[v3-2-test] Added plugins command to airflowctl (#64935)

[github-actions]

• Added plugins command into airflowctl

• Add missing docstring to test
  (cherry picked from commit bfa22c0)

Co-authored-by: Justin Pakzad 114518232+justinpakzad@users.noreply.github.com

[potiuk]

@bugraoz93 -> are we going to release airflow-ctl from v3-2-tests now ? Is it ready ? Shall we merge it ?

[bugraoz93]

@bugraoz93 -> are we going to release airflow-ctl from v3-2-tests now ? Is it ready ? Shall we merge it ?

@potiuk I think there are few more to backport before release from v3-2-test. We can collect the missing ones in a PR and generate datamodels. It shouldn't be hard as long as we release from v3-2-test. In this case, it is okay to tweak datamodels and continue with the current approach from there.

There are also some PRs which I will go through all today and tomorrow. I can make the backport PR ready before Monday for the release. We will need to generate changelog from main which shouldn't be a problem.

So let's merge this, the remaining parts can be manual for this release only. From there we should backport all the airflowctl PRs, we can update the release and contributor documents for that after the release

[bugraoz93]

I assume safe to merge but would like to double check everything so we won't break the canary builds. Will be on PC in the evening. Converting to draft until then