fix(smoke-test): add suffix in temp file creation (datahub-project#10841

)

smoke-test/tests/dataproduct/test_dataproduct.py

@@ -87,7 +87,7 @@ def create_test_data(filename: str):
 
 @pytest.fixture(scope="module", autouse=False)
 def ingest_cleanup_data(request):
- new_file, filename = tempfile.mkstemp()
+ new_file, filename = tempfile.mkstemp(suffix=".json")
  try:
  create_test_data(filename)
  print("ingesting data products test data")