Bump markdown-it and @vscode/vsce

Bumps [markdown-it](https://github.com/markdown-it/markdown-it) to 14.3.0 and updates ancestor dependency [@vscode/vsce](https://github.com/Microsoft/vsce). These dependencies need to be updated together.


Updates `markdown-it` from 12.3.2 to 14.3.0
- [Changelog](https://github.com/markdown-it/markdown-it/blob/master/CHANGELOG.md)
- [Commits](markdown-it/markdown-it@12.3.2...14.3.0)

Updates `@vscode/vsce` from 2.27.0 to 3.9.2
- [Release notes](https://github.com/Microsoft/vsce/releases)
- [Commits](microsoft/vscode-vsce@v2.27.0...v3.9.2)

---
updated-dependencies:
- dependency-name: "@vscode/vsce"
  dependency-version: 3.9.2
  dependency-type: direct:development
- dependency-name: markdown-it
  dependency-version: 14.2.0
  dependency-type: indirect
...

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Author: dependabot[bot]