Bump karma-mocha from 1.3.0 to 2.0.1

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-preview[bot] <support@dependabot.com>

package.json

@@ -54,7 +54,7 @@
     "karma": "5.0.3",
     "karma-browserstack-launcher": "1.5.1",
     "karma-firefox-launcher": "1.3.0",
-    "karma-mocha": "1.3.0",
+    "karma-mocha": "2.0.1",
     "karma-mocha-reporter": "2.2.5",
     "karma-webpack": "4.0.2",
     "math-expression-evaluator": "1.2.22",