override configure method

Author: pnilan

airbyte_cdk/sources/declarative/manifest_declarative_source.py

@@ -238,6 +238,11 @@ def _migrate_and_transform_config(
         self._spec_component.transform_config(mutable_config)
         return mutable_config
 
+    def configure(self, config: Mapping[str, Any], temp_dir: str
+    ) -> Mapping[str, Any]:
+        config = self._config or config
+        return super().configure(config, temp_dir)
+
     def _migrate_manifest(self) -> None:
         """
         This method is used to migrate the manifest. It should be called after the manifest has been validated.