[zh] Sync workload-resources/_index.md and remove resource-claim-v1alpha3

[windsonsea]

Wait for #51004 to be merged.

modified: content/zh-cn/docs/reference/kubernetes-api/workload-resources/_index.md
deleted: content/zh-cn/docs/reference/kubernetes-api/workload-resources/resource-claim-v1alpha3.md

[windsonsea]

Yes, we need to merge these PRs in sequence:

• [zh] Sync resource-claim-v1beta2.md #51004
• [zh] Sync resource-claim-template-v1beta2.md #50996
• this PR

Some rebase actions has been performed.

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[my-git9]

/lgtm
/approve

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LGTM label has been added.

Git tree hash: e26898866fc60903401ae90a3b539ef86bbb7c25

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