python3Packages.myst-parser: 2.0.0 -> 3.0.1

[loicreynier]

Description of changes

Update MyST parser to 3.0.1:

• Sphinx 7.2 compatibility patch has been removed since 🧪 Fix Sphinx 7.2 tests executablebooks/MyST-Parser#811 has been merged
• All tests seem to pass now and are now all enabled

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/)
• 24.05 Release Notes (or backporting 23.05 and 23.11 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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[nbraud]

Change looks good, but needs to target staging

[loicreynier]

Messed around while rebasing into staging but should be good now.

[mweinelt]

From experience, I'd say we have to run this through python-updates, because lots of fixtures in various packages depend on what myst-parser outputs.

I'll pull it in, when a python-updates run is happening.