fix: podTransitionRule webhook

[Eikykun]

1. Does this PR affect any open issues?(Y/N) and add issue references

• N
• Y

2. What is the scope of this PR (e.g. component or file name):

pkg/controllers/podtransitionrule/processor/rules/webhook.go

3. Provide a description of the PR(e.g. more details, effects, motivations or doc link):

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Other

4. Are there any breaking changes?(Y/N) and describe the breaking changes(e.g. more details, motivations or doc link):

• N
• Y

5. Are there test cases for these changes?(Y/N) select and add more details, references or doc links:

• Unit test
• Integration test
• Benchmark (add benchmark stats below)
• Manual test (add detailed scripts or steps below)
• Other

6. Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

[codecov]

Codecov Report

Attention: 8 lines in your changes are missing coverage. Please review.

Comparison is base (6568dac) 60.65% compared to head (b3e3293) 60.90%.

Files	Patch %	Lines
...llers/podtransitionrule/processor/rules/webhook.go	69.23%	8 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #132      +/-   ##
==========================================
+ Coverage   60.65%   60.90%   +0.24%     
==========================================
  Files          46       46              
  Lines        3566     3573       +7     
==========================================
+ Hits         2163     2176      +13     
+ Misses       1187     1185       -2     
+ Partials      216      212       -4     

Flag	Coverage Δ
unittests	60.90% <69.23%> (+0.24%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[wu8685]

lgtm