weblate: address additional review on package and dependencies

[erictapen]

Description of changes

Addresses @dotlambda s reviews in #325541 (comment) and #334849 (review).

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/)
• 24.11 Release Notes (or backporting 23.11 and 24.05 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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Add a 👍 reaction to pull requests you find important.

[dotlambda]

You didn't remove borgbackup from dependencies.

[erictapen]

You didn't remove borgbackup from dependencies.

See #325541 (comment)

[fricklerhandwerk]

@erictapen Thanks for following up on the review notes

[GetPsyched]

A lot of meta changes :)

[erictapen]

I went through and double-checked all the licenses introduced by #325541 and #334849:

• weblate
• aeidon
• ahocorasick-rs
• celery
• django-crispy-bootstrap3
• phply
• pyicumessageformat
• siphashc
• translate-toolkit
• translation-finder
• weblate-language-data
• weblate-schemas
• cyrtranslit
• django-otp-webauthn

I actually had to fix the license for siphashc and extend the one for weblate itself, as some Python files use MIT.

Weblate vendors in a few dependencies with licenses such as Apache-2.0 and BSD-3-Clause, do we mention vendored dependencies in licenses?

As laid out in #338217 (comment), I'd leave CC0 licenses in files like SECURITY.md or CI configuration off for now. Or what do you think?

Will squash commits later when approved.