fix: Add await for async tests

Author: agrawalradhika-cell

packages/google-auth/tests_async/transport/test_aiohttp_requests.py

@@ -121,12 +121,14 @@ async def test_unsupported_session(self):
         with pytest.raises(ValueError):
             await aiohttp_requests.Request(http)
 
-    def test_timeout(self):
-        http = mock.create_autospec(
-            aiohttp.ClientSession, instance=True, _auto_decompress=False
-        )
-        request = aiohttp_requests.Request(http)
-        request(url="http://example.com", method="GET", timeout=5)
+    @pytest.mark.asyncio
+    async def test_timeout(self):
+    http = mock.create_autospec(
+        aiohttp.ClientSession, instance=True, _auto_decompress=False
+    )
+    request = aiohttp_requests.Request(http)
+    await request(url="http://example.com", method="GET", timeout=5)
+
 
 
 class CredentialsStub(google.auth._credentials_async.Credentials):