fix: ensure stream is closed on exit

lib/crewai/src/crewai/a2a/task_helpers.py

@@ -264,6 +264,7 @@ async def send_message_and_get_task_id(
     Returns:
         Task ID string if agent needs polling/waiting, or TaskStateResult if done.
     """
+    try:
         async for event in event_stream:
             if isinstance(event, Message):
                 new_messages.append(event)
@@ -312,3 +313,8 @@ async def send_message_and_get_task_id(
             error="No task ID received from initial message",
             history=new_messages,
         )
+
+    finally:
+        aclose = getattr(event_stream, "aclose", None)
+        if aclose:
+            await aclose()

lib/crewai/src/crewai/a2a/updates/streaming/handler.py

@@ -133,6 +133,11 @@ class StreamingHandler:
                 history=new_messages,
             )
 
+        finally:
+            aclose = getattr(event_stream, "aclose", None)
+            if aclose:
+                await aclose()
+
         if final_result:
             return final_result