Build(deps-dev): Bump mocha from 2.0.4 to 2.1.0 (#22841)

Bumps [mocha](https://github.com/freerange/mocha) from 2.0.4 to 2.1.0.
- [Changelog](https://github.com/freerange/mocha/blob/main/RELEASE.md)
- [Commits](https://github.com/freerange/mocha/compare/v2.0.4...v2.1.0)

---
updated-dependencies:
- dependency-name: mocha
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile.lock

@@ -243,7 +243,7 @@ GEM
     mini_suffix (0.3.3)
       ffi (~> 1.9)
     minitest (5.19.0)
-    mocha (2.0.4)
+    mocha (2.1.0)
       ruby2_keywords (>= 0.0.5)
     msgpack (1.7.2)
     multi_json (1.15.0)