packit: Update jobs to target newly-released fedora-43

[jeckersb]

Signed-off-by: John Eckersberg jeckersb@redhat.com

[gemini-code-assist]

Code Review

This pull request updates the Packit configuration to include fedora-43 as a target for both Copr builds and tests. The changes are consistent with the existing structure of the configuration file. I have one suggestion to improve the clarity of a comment.

[gemini-code-assist]

The phrase "which build for all architectures" could be slightly misleading, as other targets in this job (like fedora-rawhide) build for additional architectures (e.g., ppc64le). For better clarity and to avoid confusion, you could refine the comment to reflect that these builds cover the primary set of architectures.

      # Primary targets are c9s, c10s and supported fedora right now,
      # which build for the primary architectures

[jeckersb]

We'll have to update CI / test-integration (fedora-43) to be a Required job as well, but IIRC that's a clicky click github UI thing that I don't appear to have access to modify.