fix zombieRemovalTimes lost

[iwangjie]

fix zombieRemovalTimes assignment operation lost.

Make sure that:

• You have read the contribution guidelines.
• You submit test cases (unit or integration tests) that back your changes.
• Your local test passed ./mvnw clean install -Dmaven.javadoc.skip=true.

[codecov-commenter]

Codecov Report

Merging #4368 (6687b57) into master (0a136fa) will decrease coverage by 0.04%.
The diff coverage is 28.57%.

@@             Coverage Diff              @@
##             master    #4368      +/-   ##
============================================
- Coverage     68.35%   68.31%   -0.04%     
+ Complexity     7512     7507       -5     
============================================
  Files          1020     1020              
  Lines         28797    28801       +4     
  Branches       2567     2568       +1     
============================================
- Hits          19684    19676       -8     
- Misses         7577     7590      +13     
+ Partials       1536     1535       -1     

Impacted Files	Coverage Δ
...a/org/apache/shenyu/common/constant/Constants.java	66.66% <ø> (ø)
...shenyu/plugin/sign/extractor/DefaultExtractor.java	60.00% <0.00%> (ø)
...nyu/plugin/sign/service/ComposableSignService.java	88.73% <0.00%> (-3.92%)	⬇️
...henyu/admin/service/impl/UpstreamCheckService.java	62.66% <100.00%> (-1.10%)	⬇️
.../apache/shenyu/plugin/sign/api/SignParameters.java	100.00% <100.00%> (ø)
.../client/server/consul/ShenyuConsulConfigWatch.java	60.41% <0.00%> (-22.92%)	⬇️
...ruptor/RegisterClientServerDisruptorPublisher.java	66.66% <0.00%> (+11.11%)	⬆️
...controller/ShenyuClientHttpRegistryController.java	81.81% <0.00%> (+18.18%)	⬆️

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