Bump mocha from 6.2.1 to 6.2.2

Bumps [mocha](https://github.com/mochajs/mocha) from 6.2.1 to 6.2.2.
- [Release notes](https://github.com/mochajs/mocha/releases)
- [Changelog](https://github.com/mochajs/mocha/blob/master/CHANGELOG.md)
- [Commits](mochajs/mocha@v6.2.1...v6.2.2)

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

yarn.lock

@@ -4247,9 +4247,9 @@ mkdirp@0.5.1, mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@~0.5.0, mkdirp@~0.5.1:
     minimist "0.0.8"
 
 mocha@^6.2.1:
-  version "6.2.1"
-  resolved "https://registry.yarnpkg.com/mocha/-/mocha-6.2.1.tgz#da941c99437da9bac412097859ff99543969f94c"
-  integrity sha512-VCcWkLHwk79NYQc8cxhkmI8IigTIhsCwZ6RTxQsqK6go4UvEhzJkYuHm8B2YtlSxcYq2fY+ucr4JBwoD6ci80A==
+  version "6.2.2"
+  resolved "https://registry.yarnpkg.com/mocha/-/mocha-6.2.2.tgz#5d8987e28940caf8957a7d7664b910dc5b2fea20"
+  integrity sha512-FgDS9Re79yU1xz5d+C4rv1G7QagNGHZ+iXF81hO8zY35YZZcLEsJVfFolfsqKFWunATEvNzMK0r/CwWd/szO9A==
   dependencies:
     ansi-colors "3.2.3"
     browser-stdout "1.3.1"