Bump marked from 2.1.3 to 4.1.0 in /ipywidgets_bokeh (#63)

Bumps [marked](https://github.com/markedjs/marked) from 2.1.3 to 4.1.0.
- [Release notes](https://github.com/markedjs/marked/releases)
- [Changelog](https://github.com/markedjs/marked/blob/master/.releaserc.json)
- [Commits](markedjs/marked@v2.1.3...v4.1.0)

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

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]