Release prep: 8.0.2

[dgw]

Trying out a new workflow: I've merged the changelog and backport branches for 8.0.2 into this PR, which will both run CI on the final result and allow other maintainers to give the overall patch a once-over before it gets merged for final release.

If we like doing things this way, we can use it for 8.1.0—and create (an) appropriate label(s) in the tracker for this type of PR.

[dgw]

which will both run CI on the final result

Well it's supposed to do that. I will attempt to tweak this config and make the branch name v prefix optional:

sopel/.github/workflows/ci.yml

Lines 10 to 13 in 44bc866

	pull_request:
	branches:
	- master
	- v[0-9]+.[0-9]+.x

[dgw]

OK, the CI configuration is now working as expected for 8.0.x: It runs on PRs, and includes Python 3.13 in the version matrix.

[dgw]

17:21:50 <+Sopel> [sopel] dgw commented on pull request #2655: I figure there's no need to go through a whole
new PR just to pull an added `dev-requirements.txt` comment line from #2654 upstream into `master`. I will
get @SnoopJ's sign-off on the new comment via IRC (it was his idea).
https://github.com/sopel-irc/sopel/pull/2655#issuecomment-2638257122
17:22:57 <+SnoopJ> :+1: 
17:24:08 <+dgw> goes for 2654 too I hope?
17:24:12 <+SnoopJ> ye