Update dependency eslint to v9

Author: renovate[bot]

package.json

@@ -9,7 +9,7 @@
     "lint": "eslint website/"
   },
   "devDependencies": {
-    "eslint": "6.4.0",
+    "eslint": "9.19.0",
     "eslint-config-prettier": "6.3.0",
     "eslint-plugin-prettier": "3.1.0",
     "eslint-plugin-react": "7.14.3",