Add to tests

Author: colinhacks

test/benchmarks.test.ts

@@ -58,6 +58,7 @@ import '../cases/valita';
 import '../cases/vality';
 import '../cases/yup';
 import '../cases/zod';
+import '../cases/zod4';
 import '../cases/deepkit';
 import '../cases/effect-schema';
 import '../cases/ts-auto-guard';