Bump ansi-regex in /docs

Bumps  and [ansi-regex](https://github.com/chalk/ansi-regex). These dependencies needed to be updated together.

Updates `ansi-regex` from 5.0.0 to 5.0.1
- [Release notes](https://github.com/chalk/ansi-regex/releases)
- [Commits](chalk/ansi-regex@v5.0.0...v5.0.1)

Updates `ansi-regex` from 4.1.0 to 5.0.1
- [Release notes](https://github.com/chalk/ansi-regex/releases)
- [Commits](chalk/ansi-regex@v5.0.0...v5.0.1)

Updates `ansi-regex` from 3.0.0 to 5.0.1
- [Release notes](https://github.com/chalk/ansi-regex/releases)
- [Commits](chalk/ansi-regex@v5.0.0...v5.0.1)

---
updated-dependencies:
- dependency-name: ansi-regex
  dependency-type: indirect
- dependency-name: ansi-regex
  dependency-type: indirect
- dependency-name: ansi-regex
  dependency-type: indirect
...

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