fix flaky test

Author: parthea

packages/google-cloud-spanner/tests/unit/test_batch.py

@@ -310,7 +310,7 @@ def test_aborted_exception_on_commit_with_retries(self, mock_region):
 
         # Assertion: Ensure that calling batch.commit() raises Aborted
         with self.assertRaises(Aborted) as context:
-            batch.commit(timeout_secs=0.1, default_retry_delay=0)
+            batch.commit(timeout_secs=1.0, default_retry_delay=0)
 
         # Verify exception includes request_id attribute
         self.assertIn("409 Transaction was aborted", str(context.exception))