Enable prevent-volume-mode-conversion by default following k8s 1.28 release

[akalenyu]

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 is beta since 1.27 so we can safely default to true, to get this new validation logic. https://github.com/kubernetes/enhancements/blob/master/keps/sig-storage/3141-prevent-volume-mode-conversion/kep.yaml#L30

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

Enable prevent-volume-mode-conversion feature flag by default.
ACTION REQUIRED: 
Volume mode change will be rejected when creating a PVC from a VolumeSnapshot unless the AllowVolumeModeChange annotation has been set to true. Applications relying on volume mode change when creating a PVC from VolumeSnapshot need to be updated accordingly.

[k8s-ci-robot]

Hi @akalenyu. Thanks for your PR.

I'm waiting for a kubernetes-csi 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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[akalenyu]

@xing-yang @RaunakShah I think keeping this is fine as sed will return 0 but just making sure

external-provisioner/.prow.sh

Lines 39 to 40 in 680aa9e

	echo "Enabling prevent-volume-mode-conversion in snapshot-controller"
	sed -i -e 's/# end snapshot controller args/- \"--prevent-volume-mode-conversion=true\"\n # end snapshot controller args/' "${SNAPSHOT_CONTROLLER_YAML}"

[xing-yang]

/ok-to-test

[RaunakShah]

/test pull-kubernetes-csi-external-snapshotter-1-27-on-kubernetes-1-27

[k8s-ci-robot]

@RaunakShah: The specified target(s) for /test were not found.
The following commands are available to trigger required jobs:

• /test pull-kubernetes-csi-external-provisioner-1-26-on-kubernetes-1-26
• /test pull-kubernetes-csi-external-provisioner-1-27-on-kubernetes-1-27
• /test pull-kubernetes-csi-external-provisioner-distributed-on-kubernetes-1-26
• /test pull-kubernetes-csi-external-provisioner-unit

The following commands are available to trigger optional jobs:

• /test pull-kubernetes-csi-external-provisioner-1-26-on-kubernetes-master
• /test pull-kubernetes-csi-external-provisioner-1-27-on-kubernetes-master
• /test pull-kubernetes-csi-external-provisioner-1-28-on-kubernetes-1-28
• /test pull-kubernetes-csi-external-provisioner-1-28-on-kubernetes-master
• /test pull-kubernetes-csi-external-provisioner-alpha-1-26-on-kubernetes-1-26
• /test pull-kubernetes-csi-external-provisioner-canary
• /test pull-kubernetes-csi-external-provisioner-distributed-on-kubernetes-master

Use /test all to run the following jobs that were automatically triggered:

• pull-kubernetes-csi-external-provisioner-1-26-on-kubernetes-1-26
• pull-kubernetes-csi-external-provisioner-1-27-on-kubernetes-1-27
• pull-kubernetes-csi-external-provisioner-1-28-on-kubernetes-1-28
• pull-kubernetes-csi-external-provisioner-distributed-on-kubernetes-1-26
• pull-kubernetes-csi-external-provisioner-unit

In response to this:

/test pull-kubernetes-csi-external-snapshotter-1-27-on-kubernetes-1-27

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[xing-yang]

/retest

[xing-yang]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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