Bump @eslint-community/regexpp from 4.8.1 to 4.9.1

Bumps [@eslint-community/regexpp](https://github.com/eslint-community/regexpp) from 4.8.1 to 4.9.1.
- [Release notes](https://github.com/eslint-community/regexpp/releases)
- [Commits](eslint-community/regexpp@v4.8.1...v4.9.1)

---
updated-dependencies:
- dependency-name: "@eslint-community/regexpp"
  dependency-type: indirect
  update-type: version-update:semver-minor
...

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