WIP: add groupsnapshot tests

[jsafrane]

Cherry-picked kubernetes#126326 and kubernetes#128972 from upstream. 128972 was not clean.

[openshift-ci]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[openshift-ci-robot]

@jsafrane: the contents of this pull request could not be automatically validated.

The following commits could not be validated and must be approved by a top-level approver:

• a027a96|128972: does not specify an upstream backport in the commit message
• a21f7d6|: does not specify an upstream backport in the commit message

Comment /validate-backports to re-evaluate validity of the upstream PRs, for example when they are merged upstream.

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[gnufied]

Once 1.32 rebase lands we don't need kubernetes#126326 right?

[jsafrane]

Yes, kubernetes#126326 is only for Kubernetes 1.31