On the way towards a fully scale out scheduler we need to move the
times database from the local filesystem into the SQL
database. Therefore we need to make at least one SQL connection
mandatory.
SQL reporters are required (an implied sql reporter is added to
every pipeline, explicit sql reporters ignored)
Change-Id: I30723f9b320b9f2937cc1d7ff3267519161bc380
Depends-On: https://review.opendev.org/621479
Story: 2007192
Task: 38329
9ab527971f