fix(deps): update typescript-eslint monorepo to v8.21.0

Author: renovate[bot]

packages/eslint-config-react/package.json

@@ -38,8 +38,8 @@
     "@eslint/compat": "1.2.5",
     "@eslint/eslintrc": "3.2.0",
     "@stylistic/eslint-plugin": "2.13.0",
-    "@typescript-eslint/eslint-plugin": "8.20.0",
-    "@typescript-eslint/parser": "8.20.0",
+    "@typescript-eslint/eslint-plugin": "8.21.0",
+    "@typescript-eslint/parser": "8.21.0",
     "eslint-config-airbnb": "19.0.4",
     "eslint-config-prettier": "10.0.1",
     "eslint-import-resolver-typescript": "3.7.0",