Update mocha requirement from ^9.1.3 to ^9.2.0 (#34)

package.json

@@ -32,7 +32,7 @@
   "devDependencies": {
     "@alcalzone/release-script": "^2.2.1",
     "gulp": "^4.0.2",
-    "mocha": "^9.1.3",
+    "mocha": "^9.2.0",
     "chai": "^4.3.4"
   },
   "main": "main.js",