Do not run non-deterministic RunReport tests per default

Those tests depend on timing and scheduler state, and hence fail
sometimes. As it's confusing to have tests that randomly fail, we no
longer run those tests per default. But by keeping them around and
tagging them, we allow to run them upon need (like CI, or staging
where we have better control over the environment).

Bug: 63680
Card: Analytics 1533
Change-Id: Iab05619d59f8999857541159b29db01f69cb3244