Add query for test_server_rescue race bug 1226412

This query hits race fails in test_server_rescue tests related to trying
to rescue a paused server, but the test times out before the instance is
paused.

Note that if you take out the "Current status: ACTIVE" filter from the
query, there are hits for "Current status: SHUTOFF" which fall under
test_server_actions.test_pause_unpause_server, which is a different race
condition/bug. So we should have a pretty decent fingerprint with this
to track down test_server_rescue race fails and not yield false
negatives on test_server_actions.

Related-Bug: #1226412

Change-Id: I7acefb327b32798b30491388a9e909f74bd96fc2
Merge "Add query for test_server_rescue race bug 1226412"