Upgrade k8s API and code generators to v0.31.1 #2684

Job	Run time
Shellcheck (1.22.x)	9s
govet-sidecar (1.22.x, ubuntu-latest)	8s
govet (1.22.x, ubuntu-latest)	1m 37s
lint-sidecar (1.22.x, ubuntu-latest)	1m 1s
lint (1.22.x, ubuntu-latest)	1m 52s
Check for vulnerable dependencies (1.22.x)	26s
Check for vulnerable dependencies in sidecar (1.22.x)	21s
gotest-sidecar	0s
sidecar	0s
gotest	1s
operator	1s
test-tenant	1s
test-tenant-upgrade	1s
test-tenant-hotfix-update	1s
helm	1s
helm-floor	1s
test-cert-manager	1s
test-kes	1s
test-policy-binding	1s
	5m 44s

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