Avoiding a crash in connections test is acceptable (#2732)

Co-authored-by: Amaury Chamayou <amchamay@microsoft.com>

tests/connections.py

@@ -204,7 +204,7 @@ def run(args):
             LOG.warning(e)
             network.ignore_errors_on_shutdown()
         else:
-            raise RuntimeError("Expected a fatal crash and saw none!")
+            LOG.warning("Expected a fatal crash and saw none!")
 
 
 if __name__ == "__main__":