Downgrade @theguild/eslint-config to 0.13.3 as 0.13.4 requires flat config (#10458)

Author: eddeee888

package.json

@@ -48,7 +48,7 @@
     "@babel/preset-typescript": "7.27.1",
     "@changesets/changelog-github": "0.5.1",
     "@changesets/cli": "2.29.6",
-    "@theguild/eslint-config": "0.13.4",
+    "@theguild/eslint-config": "0.13.3",
     "@theguild/prettier-config": "0.1.1",
     "bob-the-bundler": "7.0.1",
     "cross-env": "7.0.3",