deprecate csi migration for ceph rbd

[carlory]

What type of PR is this?

/kind deprecation

What this PR does / why we need it:

Based on https://groups.google.com/g/kubernetes-sig-storage/c/h5751_B5LQM, the consensus was to start the deprecation in v1.28.

This commit start the deprecation process of RDB plugin from in-tree drivers.

kubernetes/enhancements#2923 (comment)

Does this PR introduce a user-facing change?

ACTION REQUIRED:
Deprecated support for CSI migration of Ceph RBD volumes.

Users who were relying on Kubernetes' ability to migrate to an out-of-tree storage driver should complete
that migration before the support for it is removed.

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

- [KEP]: https://github.com/kubernetes/enhancements/tree/master/keps/sig-storage/2923-csi-migration-ceph-rbd 

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[carlory]

/sig storage

[sftim]

What are we deprecating? The changelog isn't clear. Are we asking people not to migrate (deprecation means “please stop doing”)?

Maybe:

Deprecated support for CSI migration of Ceph RBD volumes.

Users who were relying on Kubernetes' ability to migrate to an out-of-tree storage driver should complete
that migration before the support for it is removed.

[carlory]

@sftim thanks for your comment. It's updated now.

[humblec]

/lgtm from rbd pov
cc @xing-yang

[xing-yang]

/lgtm
/approve

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: fa6065465c39cb8c0591971617f0652bbfbf088c

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: carlory, xing-yang

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[humblec]

Thanks @xing-yang 👍

[xing-yang]

@carlory @humblec I think we need to add "ACTION REQUIRED: " in the release notes.

[humblec]

@xing-yang true. @carlory can you please add ACTION required as I have done @ #118552

[carlory]

@xing-yang updated.