Bump karma-mocha from 1.3.0 to 2.0.1 (#416)

Bumps [karma-mocha](https://github.com/karma-runner/karma-mocha) from 1.3.0 to 2.0.1.
- [Release notes](https://github.com/karma-runner/karma-mocha/releases)
- [Changelog](https://github.com/karma-runner/karma-mocha/blob/master/CHANGELOG.md)
- [Commits](karma-runner/karma-mocha@v1.3.0...v2.0.1)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -27,7 +27,7 @@
     "karma-chai": "^0.1.0",
     "chai": "*",
     "karma-firefox-launcher": "^1.0.0",
-    "karma-mocha": "^1.1.1",
+    "karma-mocha": "^2.0.1",
     "load-grunt-tasks": "^3.3.0",
     "mocha": "^2.3.3",
     "time-grunt": "^1.0.0"