chore(deps): update dependency mocha to v11

Author: renovate[bot]

package.json

@@ -47,7 +47,7 @@
     "generate-changelog": "1.8.0",
     "hubot-test-helper": "1.9.0",
     "istanbul": "0.4.5",
-    "mocha": "5.2.0",
+    "mocha": "11.7.1",
     "proxyquire": "1.8.0"
   },
   "snyk": true