update the code with aysnc iterator as suggested by Ben

llama_stack/distribution/routers/inference.py

@@ -602,7 +602,7 @@ class InferenceRouter(Inference):
 
     async def health(self) -> dict[str, HealthResponse]:
         health_statuses = {}
-        timeout = 0.5
+        timeout = 1 # increasing the timeout to 1 second for health checks
         for provider_id, impl in self.routing_table.impls_by_provider_id.items():
             try:
                 # check if the provider has a health method