chore!: Upgrade to `schemars` 1.0, `kube` 2.0 and `k8s-openapi` 0.26 … #4509

Job	Run time
Run Cargo Deny (advisories)	47s
Run Cargo Udeps	2m 14s
Run Cargo Deny (bans licenses sources)	47s
Run RustDoc	2m 57s
Run Cargo Tests	4m 26s
All tests passed	2s
	11m 13s

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