✨Remove the use of the cryptographically weak MD5 hash

[12345lcr]

What this PR does / why we need it:
Remove the use of the cryptographically weak MD5 hash (crypto/md5)

Which issue this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged): fixes #1783

Special notes for your reviewer:

Release note:

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: 12345lcr
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[k8s-ci-robot]

Hi @12345lcr. Thanks for your PR.

I'm waiting for a kubernetes 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.

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