Merge changes from topics "presubmit-am-10eb3d835eca4319b6144c8f4c068e9c",...

Merge changes from topics "presubmit-am-10eb3d835eca4319b6144c8f4c068e9c", "presubmit-am-4b02653e83b548f494f92f7a023c91b9" into tm-dev

* changes:
  Use case-insensitive match for action label.
  Take screenshot on failure.