chore(deps): bump is-regex from 1.1.4 to 1.2.1 in /dev-client

Bumps [is-regex](https://github.com/inspect-js/is-regex) from 1.1.4 to 1.2.1.
- [Changelog](https://github.com/inspect-js/is-regex/blob/main/CHANGELOG.md)
- [Commits](inspect-js/is-regex@v1.1.4...v1.2.1)

---
updated-dependencies:
- dependency-name: is-regex
  dependency-type: indirect
  update-type: version-update:semver-minor
...

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