chore(deps): update dependency mocha to v9

Author: renovate-bot

package.json

@@ -68,7 +68,7 @@
     "karma-sinon": "^1.0.5",
     "karma-sourcemap-loader": "^0.3.8",
     "karma-webpack": "^4.0.2",
-    "mocha": "^7.2.0",
+    "mocha": "^9.0.0",
     "prettier": "^2.1.2",
     "raw-loader": "^4.0.1",
     "semantic-release": "^17.0.8",