Remove Kubernetes 1.33 from KinD e2e tests

[creydr]

Kubernetes 1.33 is not supported with the next knative release anymore

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: creydr

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 50.61%. Comparing base (ac3281f) to head (495f55f).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8888      +/-   ##
==========================================
- Coverage   50.64%   50.61%   -0.03%     
==========================================
  Files         409      409              
  Lines       21650    21650              
==========================================
- Hits        10964    10959       -5     
- Misses       9832     9837       +5     
  Partials      854      854              

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