Do not share the gerrit queue dbs in tests
Do not share the gerrit queue dbs in tests

In real world, when there are multiple gerrit connection, each
connection receives the events separately.

Change-Id: I1aa930c2f5dadd55cd47e617ebb30ba6a63f7b84

gooddata/zuul,gooddata/zuul,gooddata/zuul,gooddata/zuul,gooddata/zuul