API Tests: Ensure updated_time changes in stack patch update

Check that the patch update has actually run and that we're not simply
looking at the UPDATE_COMPLETE status from the previous test, otherwise
the outputs may not have been updated before we run the next test.

Change-Id: Ia45a303e74e19e7d1887c4e242a8ee5655208e59
Closes-Bug: #1721692
1 file changed
tree: 5b1a58c3ae599c5b8dc227f2bf67b2cc716f41c3
  1. api/
  2. common/
  3. functional/
  4. scenario/