python312Packages.pbr: fix python 3.12 compatibility; python312Packages.openstackdocstheme: allow for python 3.12; openstack for python 3.12

[SuperSandro2000]

Build python312Packages.jenkins-job-builder, python312Packages.jenkins-job-builder, python312Packages.python-cinderclient, python312Packages.python-openstack-client, python312Packages.python-openstackclient

I forgot to mention that the reno change is required to fix python-cinderclient on python 3.12 otherwise it cannot be imported anymore. Not sure why exactly but since it was a none python package, probably some impurities where fixed somewhere.

Closes #362054

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandboxing enabled in nix.conf? (See Nix manual)
  • sandbox = relaxed
  • sandbox = true
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• 25.05 Release Notes (or backporting 24.11 and 25.05 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.

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[bjornfor]

I made a fix for jenkins-job-builder that isn't a mass-rebuild (#363535), so it can be distributed to users more quickly (and also fixes jenkins-job-builder runtime deps). Please rebase on top of that?

[SuperSandro2000]

The changes done in that PR fix the issue but in the wrong package and there are still some parts in pbr which then would be wrong. I won't accept them for openstackdocstheme in the long run and I really don't want to play the rebase game. Also the other dependency change is not quite correct.

[nix-backports]

Successfully created backport PR for staging-24.11:

• [Backport staging-24.11] python312Packages.pbr: fix python 3.12 compatibility; python312Packages.openstackdocstheme: allow for python 3.12; openstack for python 3.12 #363679

[bjornfor]

@SuperSandro2000: I'm adding the backport label because we need to fix jenkins-job-builder on the NixOS release. I hope this PR was made with backporting in mind.

[bjornfor]

Why are the maintainers removed? IMHO, removal of maintainers requires more rationale than saying "misc cleanup" in the commit message.

[SuperSandro2000]

Should have made it more explicit, yes. They didn't update the package in 4 years https://github.com/openstack/reno/tags and now it got absorbed into the general Openstack maintenance team https://github.com/NixOS/nixpkgs/commits/master/pkgs/development/tools/reno

[SuperSandro2000]

I didn't make the PR with backporting in mind but I don't think there are breaking changes and except the cleanups this is the minimal required change to fix the packages for python 3.12 unless we want to take incorrect shortcuts.

The general bump of all openstack tools will not be back ported though.