Increasing timeout for pubsub async tests

Author: barshaul

tests/test_asyncio/test_pubsub.py

@@ -27,7 +27,7 @@ async def run(*args, **kwargs):
     return wrapper
 
 
-async def wait_for_message(pubsub, timeout=0.1, ignore_subscribe_messages=False):
+async def wait_for_message(pubsub, timeout=0.5, ignore_subscribe_messages=False):
     now = asyncio.get_event_loop().time()
     timeout = now + timeout
     while now < timeout: