Fix that pod spec's hash may be changed when new fields are added to the PodSpec

[fgksgf]

…d spec

What problem does this PR solve?

What is changed and how does it work?

Code changes

• Has Go code change
• Has CI related scripts change

Tests

• Unit test
• E2E test
• Manual test
• No code

Side effects

• Breaking backward compatibility
• Other side effects:

Related changes

• Need to cherry-pick to the release branch
• Need to update the documentation

Release Notes

Please refer to Release Notes Language Style Guide before writing the release note.

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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 57.99%. Comparing base (33926aa) to head (cca6d12).

Additional details and impacted files

@@              Coverage Diff               @@
##           feature/v2    #6030      +/-   ##
==============================================
- Coverage       58.00%   57.99%   -0.02%     
==============================================
  Files             153      153              
  Lines            9432     9434       +2     
==============================================
  Hits             5471     5471              
- Misses           3961     3963       +2     

Flag	Coverage Δ
unittest	57.99% <100.00%> (-0.02%)	⬇️

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[fgksgf]

/run-pull-e2e-kind-v2