Fix incorrect feature state for PVC expansion

[bishal7679]

Fixes :- #36628

Closes :- #36628

Describe the solution

• changed the feature state shortcode from beta to stable since the feature as stable for v1.24
• page updated :- https://kubernetes.io/docs/concepts/storage/persistent-volumes/#expanding-persistent-volumes-claims

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[sftim]

/retitle Fix incorrect feature state for PVC expansion

[peizhouyu]

/lgtm

[k8s-ci-robot]

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/lgtm

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[mk46]

/lgtm
Thanks!!

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 70421ace7c90327db0103f976d179a9244ada525

[jimangel]

/approve

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jimangel, mk46, peizhouyu

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