Wait for deletion_time in integration tests

When we check for DELETE_COMPLETE, we can have a window where the stack
is mark as such but without deletion_time. Let's wait for that
information.

Change-Id: Ia8c225aab8b0f118e99963fc22341d743e9182a1
Closes-Bug: #1625661
1 file changed
tree: c5afd079a0e17d8be56378a59ee307aeb7634c89
  1. common/
  2. functional/
  3. scenario/