[easu][fix] make method async (meta-pytorch#548)

Co-authored-by: Felipe Mello <[email protected]>

Author: felipemello1

apps/grpo/main.py

@@ -210,7 +210,7 @@ class DatasetActor(ForgeActor):
     model: str = "Qwen/Qwen3-1.7B"
 
     @endpoint
-    def setup(self):
+    async def setup(self):
         self._tokenizer = get_tokenizer(self.model)
         self._epoch = 0