Fix Praefect crashing with SIGSEGV
Praefect crashing with SIGSEGV during collection of Prometheus replication_queue metric because logger was not initialized in NewQueueDepthCollector.
Closes #5319
Praefect crashing with SIGSEGV during collection of Prometheus replication_queue metric because logger was not initialized in NewQueueDepthCollector.
Closes #5319