Build(deps-dev): Bump mocha from 1.14.0 to 1.15.0 (#18322)

Bumps [mocha](https://github.com/freerange/mocha) from 1.14.0 to 1.15.0.
- [Release notes](https://github.com/freerange/mocha/releases)
- [Changelog](https://github.com/freerange/mocha/blob/main/RELEASE.md)
- [Commits](https://github.com/freerange/mocha/compare/v1.14.0...v1.15.0)

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

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

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

Gemfile.lock

@@ -250,7 +250,7 @@ GEM
     mini_suffix (0.3.3)
       ffi (~> 1.9)
     minitest (5.16.3)
-    mocha (1.14.0)
+    mocha (1.15.0)
     msgpack (1.5.6)
     multi_json (1.15.0)
     multi_xml (0.6.0)