Update dependency eslint to v9

Author: renovate[bot]

package.json

@@ -36,7 +36,7 @@
     "@types/vinyl": "^2.0.11",
     "@typescript-eslint/eslint-plugin": "^7.16.0",
     "@typescript-eslint/parser": "^7.16.0",
-    "eslint": "^8.56.0",
+    "eslint": "^9.0.0",
     "jest": "^30.0.0",
     "prettier": "^3.2.5",
     "ts-jest": "^29.2.0",