Fix annotations not getting added to cleanup pods

[jonstacks]

closes: #21469

This PR propagates the airflowPodAnnotations that the documentation says is applied to all airflow pods to the pods launched by the cleanup cronojob. It also allows for setting podAnnotations specifically for the cleanup pods.

[jedcunningham]

@jonstacks, overall looks good. Can you instead add test coverage in these 2 places:

airflow/chart/tests/test_annotations.py

Line 284 in 5dc6338

class TestPerComponentPodAnnotations:

airflow/chart/tests/test_airflow_common.py

Line 69 in 5dc6338

def test_annotations(self):

Sorry, yes, it is a little messy - feel free to open a follow up PR doing some cleanup if you want.

[jonstacks]

@jedcunningham, thanks for the review and feedback. Can you tell me if this is more in line with what you are thinking?

[github-actions]

The PR is likely OK to be merged with just subset of tests for default Python and Database versions without running the full matrix of tests, because it does not modify the core of Airflow. If the committers decide that the full tests matrix is needed, they will add the label 'full tests needed'. Then you should rebase to the latest main or amend the last commit of the PR, and push it with --force-with-lease.

[jedcunningham]

Thanks @jonstacks 🎉