Update dependency eslint to v9

Author: renovate[bot]

package.json

@@ -54,7 +54,7 @@
     "@types/react": "^18.2.0",
     "@types/react-dom": "^18.2.0",
     "@typescript-eslint/eslint-plugin": "^7.0.1",
-    "eslint": "8.57.1",
+    "eslint": "9.12.0",
     "eslint-config-mitodl": "^2.0.0",
     "eslint-plugin-react": "^7.37.1",
     "eslint-plugin-react-hooks": "^4.6.2",