Bump mocha from 2.0.2 to 2.0.4

Bumps [mocha](https://github.com/freerange/mocha) from 2.0.2 to 2.0.4.
- [Changelog](https://github.com/freerange/mocha/blob/main/RELEASE.md)
- [Commits](freerange/mocha@v2.0.2...v2.0.4)

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

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

Author: dependabot[bot]

Gemfile.lock

@@ -44,7 +44,7 @@ GEM
       nokogiri (>= 1.12.0)
     mini_portile2 (2.8.2)
     minitest (5.18.0)
-    mocha (2.0.2)
+    mocha (2.0.4)
       ruby2_keywords (>= 0.0.5)
     nokogiri (1.15.2)
       mini_portile2 (~> 2.8.2)