Update base image version in Dockerfiles to bci-busybox 16.0 #8483

Job	Run time
e2e-fleet-test-k3s-new-metrics	10m 17s
e2e-fleet-test-k3s-new-infra-setup-git	17m 49s
e2e-fleet-test-k3s-old-sharding	6m 17s
e2e-fleet-test-k3s-old-infra-setup-oci	12m 59s
e2e-fleet-test-k3s-old-infra-setup-git	19m 19s
e2e-fleet-test-k3s-new-sharding	5m 58s
e2e-fleet-test-k3s-new-sharded-metrics	10m 27s
e2e-fleet-test-k3s-new-default	15m 49s
e2e-fleet-test-k3s-old-default	12m 20s
e2e-fleet-test-k3s-old-infra-setup-helm	6m 10s
e2e-fleet-test-k3s-new-infra-setup-oci	12m 18s
e2e-fleet-test-k3s-new-infra-setup-helm	7m 54s
e2e-fleet-test-k3s-old-metrics	9m 59s
e2e-fleet-test-k3s-old-sharded-metrics	9m 55s
e2e-fleet-test-k3s-new-sharding	5m 58s
e2e-fleet-test-k3s-new-metrics	10m 17s
e2e-fleet-test-k3s-new-infra-setup-git	17m 49s
e2e-fleet-test-k3s-new-infra-setup-helm	7m 54s
e2e-fleet-test-k3s-new-infra-setup-oci	12m 18s
e2e-fleet-test-k3s-old-sharded-metrics	9m 55s
e2e-fleet-test-k3s-new-default	12m 41s
e2e-fleet-test-k3s-old-default	12m 20s
e2e-fleet-test-k3s-old-sharding	6m 17s
e2e-fleet-test-k3s-old-infra-setup-git	19m 19s
e2e-fleet-test-k3s-old-metrics	9m 59s
e2e-fleet-test-k3s-old-infra-setup-oci	12m 59s
e2e-fleet-test-k3s-old-infra-setup-helm	6m 10s
e2e-fleet-test-k3s-new-sharded-metrics	10m 27s
	5h 11m 54s

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