Bump K8s dependencies to v0.28.5 and set K8s min-version to 1.27

[ReToCode]

Changes

• Bump K8s dependencies to v0.28.5 and set K8s min-version to 1.27
• Keeping the old ways of generating code, see discussion in https://cloud-native.slack.com/archives/C04LGHDR9K7/p1704710449414709 because of close release date

Fixes #2902

Release Note

The minimal required kubernetes version to use `knative/pkg` is now v1.27.0

[skonto]

fatal: ambiguous argument 'third_party/VENDOR-LICENSE/golang.org/x/sys/unix/LICENSE': unknown revision or path not in the working tree.

I think that was faced before right?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (a459076) 81.80% compared to head (529d282) 81.80%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2928   +/-   ##
=======================================
  Coverage   81.80%   81.80%           
=======================================
  Files         167      167           
  Lines       10231    10231           
=======================================
  Hits         8369     8369           
  Misses       1614     1614           
  Partials      248      248           

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[dprotaso]

Also can we rebase on - #2915

[ReToCode]

Merged the changes in hack and rebased on top of latest main

[dprotaso]

/lgtm
/approve

[knative-prow]

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