Bump @codemirror/lang-markdown from 6.3.3 to 6.5.0

Bumps [@codemirror/lang-markdown](https://github.com/codemirror/lang-markdown) from 6.3.3 to 6.5.0.
- [Changelog](https://github.com/codemirror/lang-markdown/blob/main/CHANGELOG.md)
- [Commits](https://github.com/codemirror/lang-markdown/compare/6.3.3...6.5.0

)

---
updated-dependencies:
- dependency-name: "@codemirror/lang-markdown"
  dependency-version: 6.5.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>