[Python] cloudsql_it_test fixture runs before setupclass (#36406)

* fixture runs before setupclass

* format

Author: stankiewicz

sdks/python/apache_beam/transforms/enrichment_handlers/cloudsql_it_test.py

@@ -209,6 +209,7 @@ def create_table(
 
 
 class BaseTestSQLEnrichment(unittest.TestCase):
+  _cache_client_retries = 3
   _table_data = [
       {
           "id": 1, "name": "A", 'quantity': 2, 'distribution_center_id': 3
@@ -259,8 +260,6 @@ def setUpClass(cls):
         table_data=cls._table_data,
         metadata=cls._metadata)
 
-    cls._cache_client_retries = 3
-
   @classmethod
   def get_columns(cls):
     """Returns fresh column objects each time it's called."""