Develop refactor topn

[KomachiSion]

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Verifying this change

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Follow this checklist to help us incorporate your contribution quickly and easily:

• Make sure there is a Github issue filed for the change (usually before you start working on it). Trivial changes like typos do not require a Github issue. Your pull request should address just this issue, without pulling in other changes - one PR resolves one issue.
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• Write necessary unit-test to verify your logic correction, more mock a little better when cross module dependency exist. If the new feature or significant change is committed, please remember to add integration-test in test module.
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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 89.47368% with 10 lines in your changes missing coverage. Please review.

Project coverage is 60.41%. Comparing base (0d46af0) to head (d9e3a79).
Report is 311 commits behind head on develop.

Files with missing lines	Patch %	Lines
...ming/monitor/NamingDynamicMeterRefreshService.java	0.00%	3 Missing ⚠️
...ibaba/nacos/core/monitor/topn/BaseTopNCounter.java	92.30%	0 Missing and 2 partials ⚠️
...om/alibaba/nacos/core/monitor/topn/TopNConfig.java	85.71%	2 Missing ⚠️
...m/alibaba/nacos/naming/monitor/MetricsMonitor.java	50.00%	2 Missing ⚠️
...ibaba/nacos/naming/monitor/ServiceTopNCounter.java	66.66%	1 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             develop   #11352      +/-   ##
=============================================
- Coverage      60.50%   60.41%   -0.10%     
- Complexity      5836     5845       +9     
=============================================
  Files            883      887       +4     
  Lines          26827    26833       +6     
  Branches        2770     2767       -3     
=============================================
- Hits           16231    16210      -21     
- Misses          9481     9507      +26     
- Partials        1115     1116       +1     

Files with missing lines	Coverage Δ
...acos/core/monitor/topn/FixedSizePriorityQueue.java	100.00% <100.00%> (ø)
...aba/nacos/core/monitor/topn/StringTopNCounter.java	100.00% <100.00%> (ø)
.../naming/push/v2/NamingSubscriberServiceV2Impl.java	76.19% <100.00%> (ø)
...ibaba/nacos/naming/monitor/ServiceTopNCounter.java	66.66% <66.66%> (ø)
...ibaba/nacos/core/monitor/topn/BaseTopNCounter.java	92.30% <92.30%> (ø)
...om/alibaba/nacos/core/monitor/topn/TopNConfig.java	85.71% <85.71%> (ø)
...m/alibaba/nacos/naming/monitor/MetricsMonitor.java	86.77% <50.00%> (-0.73%)	⬇️
...ming/monitor/NamingDynamicMeterRefreshService.java	0.00% <0.00%> (ø)

... and 7 files with indirect coverage changes

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