Bump mocha from 1.16.0 to 2.0.2

Bumps [mocha](https://github.com/freerange/mocha) from 1.16.0 to 2.0.2.
- [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/v1.16.0...v2.0.2)

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

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

Gemfile.lock

@@ -168,7 +168,8 @@ GEM
     mini_portile2 (2.8.0)
     minitest (5.16.3)
     minitest-stub-const (0.6)
-    mocha (1.16.0)
+    mocha (2.0.2)
+      ruby2_keywords (>= 0.0.5)
     mysql2 (0.5.4)
     nio4r (2.5.8)
     nokogiri (1.13.9)
@@ -248,6 +249,7 @@ GEM
     rubocop-ast (1.23.0)
       parser (>= 3.1.1.0)
     ruby-progressbar (1.11.0)
+    ruby2_keywords (0.0.5)
     safe_yaml (1.0.5)
     sanitize (6.0.0)
       crass (~> 1.0.2)