Update myst-parser to 5.0.0

[pyup-bot]

This PR updates myst-parser from 4.0.1 to 5.0.0.

Changelog

5.0.0

This release significantly bumps the supported versions of core dependencies:

‼️ Breaking Changes

This release updates the minimum supported versions:

- **Python**: `>=3.11` (dropped Python 3.10, tests up to 3.14)
- **Sphinx**: `>=8,<10` (dropped Sphinx 7, added Sphinx 9)
- **Docutils**: `>=0.20,<0.23` (dropped docutils 0.19, added docutils 0.22)
- **markdown-it-py**: `~=4.0` (upgraded from v3)

⬆️ Dependency Upgrades

- ⬆️ Upgrade to markdown-it-py v4 by <gh-user:chrisjsewell> in <gh-pr:1060>
- ⬆️ Drop Python 3.10 and Sphinx 7 by <gh-user:chrisjsewell> in <gh-pr:1059>
- ⬆️ Drop docutils 0.19 by <gh-user:chrisjsewell> in <gh-pr:1061>
- ⬆️ Add support for Python 3.14 by <gh-user:chrisjsewell> in <gh-pr:1075>
- ⬆️ Support Sphinx v9 by <gh-user:chrisjsewell> in <gh-pr:1076>
- ⬆️ Allow docutils 0.22 by <gh-user:chrisjsewell> in <gh-pr:1084>

👌 Improvements

- 👌 Improve generation of meta nodes by <gh-user:AA-Turner> in <gh-pr:1080>

📚 Documentation

- 📚 Fix typo in tables.md by <gh-user:electricalgorithm> in <gh-pr:1034>
- 📚 Fix minor typo in `cross-referencing.md` by <gh-user:krassowski> in <gh-pr:1036>

🔧 Internal / Maintenance

- 🔧 Update pre-commit by <gh-user:chrisjsewell> in <gh-pr:1058>
- 🔧 Add `AGENTS.md` by <gh-user:chrisjsewell> in <gh-pr:1083>

**Full Changelog**: [v4.0.1...v5.0.0](https://github.com/executablebooks/MyST-Parser/compare/v4.0.1...v5.0.0)

Links

• PyPI: https://pypi.org/project/myst-parser
• Changelog: https://data.safetycli.com/changelogs/myst-parser/