Bump k8s deps to v0.23.4

[pierDipi]

See knative/pkg#2458

See individual commits for details.

Proposed Changes

• Bump k8s deps to v0.23.4

Pre-review Checklist

• At least 80% unit test coverage
• E2E tests for any new behavior
• Docs PR for any user-facing impact
• Spec PR for any new API feature
• Conformance test for any change to the spec

Release Note

The minimum Kubernetes version is 1.22.

[codecov]

Codecov Report

Merging #6280 (15f0641) into main (2233333) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main    #6280   +/-   ##
=======================================
  Coverage   82.18%   82.18%           
=======================================
  Files         231      231           
  Lines        7786     7786           
=======================================
  Hits         6399     6399           
  Misses        937      937           
  Partials      450      450           

Impacted Files	Coverage Δ
...ciler/apiserversource/resources/receive_adapter.go	93.87% <100.00%> (ø)

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[pierDipi]

/kind api-change

[pierDipi]

/test pull-knative-eventing-upgrade-tests

[dprotaso]

/lgtm
/approve

If your e2e scripts spin up 1.21 clusters you'll want to bump those to 1.22 in a subsequent PR - I haven't bumped the hard min check in pkg yet. Figured I'd give folks time to get these dependency updates through first

[knative-prow-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dprotaso, pierDipi

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