Fix syntax error in test_submit_first finally block

Agent-Logs-Url: https://github.com/mila-iqia/cluv/sessions/1f65cc86-e12e-40dd-9e49-f04521f21bfa

Co-authored-by: lebrice <13387299+lebrice@users.noreply.github.com>

Author: Copilot

tests/test_integration.py

@@ -285,8 +285,9 @@ async def test_submit_first():
     finally:
         if job_info is not None:
             # Cancel the winning job only on the cluster where it was submitted.
-            remote = next(remote for remote in remotes if remote.hostname == job_info.cluster
-            await r.run(f"scancel {job_info.job_id}", warn=True, hide=True, display=True)
+            remote = next((r for r in remotes if r.hostname == job_info.cluster), None)
+            if remote is not None:
+                await remote.run(f"scancel {job_info.job_id}", warn=True, hide=True, display=True)
 
 
 @pytest.fixture