Bump github.com/cenkalti/backoff/v4 from 4.1.3 to 4.2.1 #299

Job	Run time
Build images	6s
test (GODOG_FEATURE=active_nodes.feature make test)	6m 48s
test (GODOG_FEATURE=async.feature make test)	3m 40s
test (GODOG_FEATURE=cascade_replicas.feature make test)	6m 51s
test (GODOG_FEATURE=CLI.feature make test)	3m 58s
test (GODOG_FEATURE=crash_recovery.feature make test)	4m 30s
test (GODOG_FEATURE=events_reenable.feature make test)	2m 2s
test (GODOG_FEATURE=failover.feature make test)	12m 15s
test (GODOG_FEATURE=free_space.feature make test)	5m 43s
test (GODOG_FEATURE=host_discovery.feature make test)	3m 15s
test (GODOG_FEATURE=host_management.feature make test)	2m 53s
test (GODOG_FEATURE=maintenance.feature make test)	4m 30s
test (GODOG_FEATURE=offline_mode.feature make test)	1m 58s
test (GODOG_FEATURE=priority.feature make test)	5m 21s
test (GODOG_FEATURE=readonly_filesystem.feature make test)	2m 8s
test (GODOG_FEATURE=recovery.feature make test)	3m 4s
test (GODOG_FEATURE=repair.feature make test)	9m 42s
test (GODOG_FEATURE=statefile.feature make test)	3m 52s
test (GODOG_FEATURE=switchover_from.feature make test)	9m 54s
test (GODOG_FEATURE=switchover_to.feature make test)	10m 32s
test (GODOG_FEATURE=zk_failure.feature make test)	7m 12s
test (GODOG_FEATURE=zk_maintenance.feature make test)	4m 1s
	1h 54m 15s

Provide feedback