CI: zfs-test-packages: Add in new repos

[tonyhutter]

Motivation and Context

Test new RPM repos in zfs-test-packages workflow.

Description

Allow the zfs-test-packages workflow to test install from our new RPM repos (#17304):
zfs-latest, zfs-legacy, zfs-2.3, zfs-2.2

This on-demand workflow is used when creating releases to verify that the zfs RPMs in the repos are correct.

How Has This Been Tested?

Ran workflow locally. Partial screenshot:

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Performance enhancement (non-breaking change which improves efficiency)
• Code cleanup (non-breaking change which makes code smaller or more readable)
• Quality assurance (non-breaking change which makes the code more robust against bugs)
• Breaking change (fix or feature that would cause existing functionality to change)
• Library ABI change (libzfs, libzfs_core, libnvpair, libuutil and libzfsbootenv)
• Documentation (a change to man pages or other documentation)

Checklist:

• My code follows the OpenZFS code style requirements.
• I have updated the documentation accordingly.
• I have read the contributing document.
• I have added tests to cover my changes.
• I have run the ZFS Test Suite with this change applied.
• All commit messages are properly formatted and contain Signed-off-by.