feat(cinder-csi): Allow deletionPolicy to be configurable

[huangkevin404]

What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespaces from that line:

/kind api-change
/kind bug
/kind cleanup
/kind design
/kind documentation
/kind failing-test

/kind feature

/kind flake

What this PR does / why we need it:

This allows the VolumeSnapshotClass' deletionPolicy of cinder-csi to be configurable.

Does this PR introduce a user-facing change?:

cinder-csi: Allow VolumeSnapshotClass' deletionPolicy to be configurable

[k8s-ci-robot]

Hi @huangkevin404. Thanks for your PR.

I'm waiting for a kubernetes-sigs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[yankay]

/ok-to-test

[floryut]

@huangkevin404 Thank you 👍

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: floryut, huangkevin404

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[oomichi]

/lgtm