Add field for iam_email

Author: schen59

mmv1/third_party/terraform/services/sql/resource_sql_user_meta.yaml

@@ -23,4 +23,5 @@ fields:
   - field: 'sql_server_user_details.disabled'
   - field: 'sql_server_user_details.server_roles'
   - api_field: 'type'
-  - api_field: 'database_roles'
+  - field: 'database_roles'
+  - field: 'iam_email'