Bump marked and remark-typedoc-symbol-links in /docs-v3

Bumps [marked](https://github.com/markedjs/marked) and [remark-typedoc-symbol-links](https://github.com/kamranayub/remark-typedoc-symbol-links). These dependencies needed to be updated together.

Updates `marked` from 1.0.0 to 4.0.18
- [Release notes](https://github.com/markedjs/marked/releases)
- [Changelog](https://github.com/markedjs/marked/blob/master/.releaserc.json)
- [Commits](markedjs/marked@v1.0.0...v4.0.18)

Updates `remark-typedoc-symbol-links` from 1.0.1 to 1.2.2
- [Release notes](https://github.com/kamranayub/remark-typedoc-symbol-links/releases)
- [Commits](kamranayub/remark-typedoc-symbol-links@v1.0.1...v1.2.2)

---
updated-dependencies:
- dependency-name: marked
  dependency-type: indirect
- dependency-name: remark-typedoc-symbol-links
  dependency-type: direct:production
...

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