Bump marked from 0.3.19 to 4.2.4 in /packages/jupyterlab-lsp

Bumps [marked](https://github.com/markedjs/marked) from 0.3.19 to 4.2.4.
- [Release notes](https://github.com/markedjs/marked/releases)
- [Changelog](https://github.com/markedjs/marked/blob/master/.releaserc.json)
- [Commits](markedjs/marked@v0.3.19...v4.2.4)

---
updated-dependencies:
- dependency-name: marked
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]