Bump mocha from 1.9.0 to 1.10.0 (#2124)

Bumps [mocha](https://github.com/freerange/mocha) from 1.9.0 to 1.10.0.
- [Release notes](https://github.com/freerange/mocha/releases)
- [Changelog](https://github.com/freerange/mocha/blob/master/RELEASE.md)
- [Commits](freerange/mocha@v1.9.0...v1.10.0)

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

Gemfile.lock

@@ -169,14 +169,12 @@ GEM
       mini_mime (>= 0.1.1)
     marcel (0.3.3)
       mimemagic (~> 0.3.2)
-    metaclass (0.0.4)
     method_source (0.9.2)
     mimemagic (0.3.3)
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
     minitest (5.13.0)
-    mocha (1.9.0)
-      metaclass (~> 0.0.1)
+    mocha (1.10.0)
     msgpack (1.3.1)
     multi_json (1.14.1)
     multi_xml (0.6.0)