Update dependency eslint to v9

Author: renovate[bot]

package.json

@@ -18,7 +18,7 @@
   },
   "main": "./src/index.js",
   "devDependencies": {
-    "eslint": "^7.0.0",
+    "eslint": "^9.0.0",
     "eslint-config-taskcluster": "^4.0.0",
     "js-yaml": "^4.0.0",
     "mocha": "^8.0.0"