Promote VolumeAttributesClass to Beta

[AndrewSirenko]

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:

Promote VolumeAttributesClass feature gate to Beta to match promotion of upstream KEP #3751 in Kubernetes v1.31.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

Promote VolumeAttributesClass feature gate to beta. If VolumeAttributesClass feature gate gate is enabled, this sidecar may only be used with Kubernetes v1.31 due to objects and listers having been upgraded to v1beta1.

[AndrewSirenko]

/cc @xing-yang

[AndrewSirenko]

/hold

I must test if we are to bump to v1beta1 objects and listers because there is no CI test.

[gnufied]

fwiw, I verified via e2e as well:

  I0821 13:44:40.488678 4134417 suites.go:34] Running AfterSuite actions on node 1
[SynchronizedAfterSuite] PASSED [0.000 seconds]
------------------------------
[ReportAfterSuite] Kubernetes e2e suite report
k8s.io/kubernetes/test/e2e/e2e_test.go:158
[ReportAfterSuite] PASSED [0.000 seconds]
------------------------------

Ran 6 of 6609 Specs in 223.708 seconds
SUCCESS! -- 6 Passed | 0 Failed | 0 Pending | 6603 Skipped
PASS

And it was passing.

[gnufied]

/lgtm

[AndrewSirenko]

/unhold

Verified manually on EBS CSI Driver + @gnufied verified with e2e #1253 (comment)

[xing-yang]

/approve

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