Bump ansi-regex from 3.0.0 to 3.0.1 in /examples/subscription

Bumps [ansi-regex](https://github.com/chalk/ansi-regex) from 3.0.0 to 3.0.1.
- [Release notes](https://github.com/chalk/ansi-regex/releases)
- [Commits](chalk/ansi-regex@v3.0.0...v3.0.1)

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

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