Bump karma-mocha from 1.3.0 to 2.0.0

Bumps [karma-mocha](https://github.com/karma-runner/karma-mocha) from 1.3.0 to 2.0.0.
- [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...v2.0.0)

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

package.json

@@ -55,7 +55,7 @@
     "karma": "^5.0.1",
     "karma-chai": "^0.1.0",
     "karma-chrome-launcher": "^3.0.0",
-    "karma-mocha": "^1.3.0",
+    "karma-mocha": "^2.0.0",
     "mocha": "^7.1.1",
     "prettier": "2.0.4",
     "rollup": "^2.6.1",