skip TestAccSpannerInstance_freeInstanceBasicUpdate

Author: zli82016

mmv1/products/spanner/Instance.yaml

@@ -76,6 +76,8 @@ virtual_fields:
 tgc_tests:
   - name: 'TestAccSpannerInstance_basicWithAutoscalingUsingNodeConfigUpdateDisableAutoscaling'
     skip: 'sometimes the CAI asset data for step3 is unavailable'
+  - name: 'TestAccSpannerInstance_freeInstanceBasicUpdate'
+    skip: 'sometimes the CAI asset data for step3 is unavailable
 parameters:
 properties:
   - name: 'name'