chore: use exc_info for consistency

Author: jackwotherspoon

tests/unit/test_client.py

@@ -169,11 +169,11 @@ async def test_cloud_sql_error_messages_get_metadata(
             payload=resp_body,
             repeat=True,
         )
-        with pytest.raises(ClientResponseError) as e:
+        with pytest.raises(ClientResponseError) as exc_info:
             await client._get_metadata("my-project", "my-region", "my-instance")
-            assert e.status == 403
+            assert exc_info.status == 403
             assert (
-                e.message
+                exc_info.message
                 == "Cloud SQL Admin API has not been used in project 123456789 before or it is disabled"
             )
         await client.close()
@@ -205,8 +205,8 @@ async def test_cloud_sql_error_messages_get_ephemeral(
             payload=resp_body,
             repeat=True,
         )
-        with pytest.raises(ClientResponseError) as e:
+        with pytest.raises(ClientResponseError) as exc_info:
             await client._get_ephemeral("my-project", "my-instance", "my-key")
-            assert e.status == 404
-            assert e.message == "The Cloud SQL instance does not exist."
+            assert exc_info.status == 404
+            assert exc_info.message == "The Cloud SQL instance does not exist."
         await client.close()