Update quay.io/appuio/oc Docker tag to v4.16 #564

Job	Run time
editorconfig	4s
linting (lint_jsonnet)	8s
linting (lint_yaml)	8s
golden (capacity-alerts)	50s
golden (remote-write)	54s
linting (lint_adoc)	6s
golden (user-workload-monitoring)	52s
test (capacity-alerts)	1m 3s
golden (capacity-alerts-with-node-labels)	57s
test (remote-write)	50s
test (user-workload-monitoring)	58s
golden (vsphere)	58s
golden (custom-rules)	52s
test (capacity-alerts-with-node-labels)	55s
golden (team-routing)	57s
test (vsphere)	51s
test (custom-rules)	1m 11s
golden (release-4.14)	1m 6s
test (team-routing)	52s
golden (ovn-kubernetes)	59s
golden (release-4.15)	57s
test (release-4.14)	1m 9s
golden (release-4.16)	54s
test (ovn-kubernetes)	53s
test (release-4.15)	50s
test (release-4.16)	46s
	21m 0s

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