chore(deps): update dependency @types/mocha to v9

Author: renovate-bot

package-lock.json

@@ -51,7 +51,7 @@
         "@types/eslint-visitor-keys": "^1.0.0",
         "@types/estree": "^0.0.50",
         "@types/lodash": "^4.14.158",
-        "@types/mocha": "^8.0.0",
+        "@types/mocha": "^9.0.0",
         "@types/semver": "^7.3.1",
         "@typescript-eslint/eslint-plugin": "^4.11.0",
         "@typescript-eslint/parser": "^4.11.0",