chore(ci): delint trailing comma

ci/tasks.py

@@ -239,7 +239,7 @@ def diff(
                 f"```diff\n{full_diff}```\n"
                 if full_diff
                 else f"No {driver if driver else 'manifest'} changes found for {c.calitp_config.channel}.\n"
-            )
+            ),
         ]
     )