Update dependency mocha to v12

Author: renovate[bot]

package.json

@@ -40,7 +40,7 @@
     "karma": "6.4.4",
     "karma-firefox-launcher": "2.1.3",
     "karma-jasmine": "5.1.0",
-    "mocha": "10.8.2",
+    "mocha": "12.0.0",
     "moment": "2.30.1",
     "pinst": "3.0.0",
     "prettier": "3.9.6",