fix and upgrade 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):

PodTransitionRule

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

• update PodTransitionRule api: remove ItemStatus and expressed it as TaskInfo's Processing/Approved
• update PodTransitionRule shortName: rs->ptr
• add PollingManager:
  -> to process webhook polling task alone
  -> trigger PodTransitionRule reconciliation by GenericEvent
• add some test case in PodTransitionRule

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: 93 lines in your changes are missing coverage. Please review.

Comparison is base (3afbc70) 60.81% compared to head (3ae4516) 62.33%.

Files	Patch %	Lines
...llers/podtransitionrule/processor/rules/webhook.go	75.00%	44 Missing and 7 partials ⚠️
...llers/podtransitionrule/processor/rules/polling.go	75.67%	29 Missing and 7 partials ⚠️
.../podtransitionrule/podtransitionrule_controller.go	66.66%	2 Missing and 1 partial ⚠️
...ers/podtransitionrule/processor/rules/available.go	0.00%	2 Missing ⚠️
...rollers/podtransitionrule/processor/rules/types.go	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #133      +/-   ##
==========================================
+ Coverage   60.81%   62.33%   +1.51%     
==========================================
  Files          46       47       +1     
  Lines        3573     3672      +99     
==========================================
+ Hits         2173     2289     +116     
+ Misses       1188     1162      -26     
- Partials      212      221       +9     

Flag	Coverage Δ
unittests	62.33% <74.86%> (+1.51%)	⬆️

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[wu8685]

lgtm