Add Helm 4.x checksums

[Srishti-j18]

What type of PR is this?
/kind feature

What this PR does / why we need it:
Adds Helm 4.x checksums so Helm v4 becomes the default download version.

Which issue(s) this PR fixes:

Fixes #12713

Special notes for your reviewer:
Checksums sourced from official Helm release sha256sum files.

Does this PR introduce a user-facing change?:

Helm version default is now 4.1.1.

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: Srishti-j18
Once this PR has been reviewed and has the lgtm label, please assign vannten for approval. For more information see the Code Review Process.

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[k8s-ci-robot]

Hi @Srishti-j18. 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.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[Srishti-j18]

Requesting /ok-to-test, please. I want to see if CI fails.

[VannTen]

/ok-to-test
Please remove the 3.16.* hashes (we try to keep max 3 minor versions)

[Srishti-j18]

Done

[Srishti-j18]

/kind feature

[Srishti-j18]

/retest-failed