chore(deps): update dependency eslint to v9

Author: pactflow-renovate-bot[bot]

package.json

@@ -40,7 +40,7 @@
     "@typescript-eslint/eslint-plugin": "2.34.0",
     "@typescript-eslint/parser": "2.34.0",
     "babel-eslint": "10.1.0",
-    "eslint": "6.8.0",
+    "eslint": "9.21.0",
     "eslint-config-react-app": "5.2.1",
     "eslint-plugin-flowtype": "3.13.0",
     "eslint-plugin-import": "2.31.0",