Bump ansi-regex from 5.0.0 to 5.0.1 in /mqtt-websocket-proxy

Bumps [ansi-regex](https://github.com/chalk/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)

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

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