promote additional kind alpha/beta jobs to release informing

[BenTheElder]

See: kubernetes/sig-release#2888, kubernetes/kubernetes#131040

/hold

We (SIG Testing TLs -- Myself, @pohly, @aojea) have:

• Maintained these jobs to be stable
• Filed Promoting kind alpha/beta jobs to Release Informing sig-release#2888 with all required details
• Posted to dev@kubernetes.io and the SIG release mailinglists
• Posted the mailinglist thread to sig-release slack
• Posted again to the mailinglists and slack
• CCed specific teams and individuals on the github thread
• CCed here @kubernetes/sig-release-leads @drewhagen @tico88612

We are approaching 4 weeks of this, which will still be ahead of code freeze.

This coverage is important for preventing regressions in pre-GA features.

[k8s-ci-robot]

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