Prevent false positives of UPDATE_COMPLETE in integration tests

Use the updated_at field in the stack output to check for
false positives of UPDATE_COMPLETE.

Partially-Closes Bug: #1433340

Change-Id: I8e68a2764741cc19305a0db7825322807b6508f3
1 file changed
tree: f9cf6327a73fc88bf41b21ca4aabf17082037d43
  1. common/
  2. functional/
  3. scenario/