Restore PVs regardless of the reclaim policy

[27149chen]

Please add a summary of your change

This pr want to handle the following use case

1. alice has two clusters and one storage which is shared by both clusters
2. alice want to backup a pod+pvc (with Delete policy) in cluster A and restore it to cluster B
3. no data copy is required, but the field spec.csi.volumeHandle should not be changed, so pv must be restored, not recreated

the solution is:

1. add an annotaion to the Restore object: velero.io/restore-pvs: pv1,pv2,pv3
2. When restoring pv, if the pv name appears in above annotaion, restore it regardless of the reclaim policy

Does your change fix a particular issue?

Fixes #6864

Please indicate you've done the following:

• Accepted the DCO. Commits without the DCO will delay acceptance.
• Created a changelog file or added /kind changelog-not-required as a comment on this pull request.
• Updated the corresponding documentation in site/content/docs/main.

[kaovilai]

Any new annotations should go in https://github.com/vmware-tanzu/velero/blob/main/pkg/apis/velero/v1/labels_annotations.go

[27149chen]

ok, moved

[ywk253100]

@27149chen Could you open an issue for this use case and involve more maintainers to discuss?

We have so many different kinds of customization logic to handle different use cases which we try to avoid. If this isn't a common case, we'd like to not introduce such changes.

[27149chen]

@27149chen Could you open an issue for this use case and involve more maintainers to discuss?

We have so many different kinds of customization logic to handle different use cases which we try to avoid. If this isn't a common case, we'd like to not introduce such changes.

@ywk253100 issue created: #6864