Bump mocha from 2.7.1 to 2.8.2

Bumps [mocha](https://github.com/freerange/mocha) from 2.7.1 to 2.8.2.
- [Changelog](https://github.com/freerange/mocha/blob/main/RELEASE.md)
- [Commits](freerange/mocha@v2.7.1...v2.8.2)

---
updated-dependencies:
- dependency-name: mocha
  dependency-version: 2.8.2
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -216,7 +216,7 @@ GEM
       libv8-node (~> 24.1.0.0)
     minitest (5.26.0)
     minitest-stub-const (0.6)
-    mocha (2.7.1)
+    mocha (2.8.2)
       ruby2_keywords (>= 0.0.5)
     mutex_m (0.3.0)
     mysql2 (0.5.7)