[ISSUE #9290] Improve Namesrv health check: auto-close unhealthy channel on repeated failures

[Kris20030907]

…not disconnect if there is a problem with the network.

Which Issue(s) This PR Fixes

Fixes #9290

Brief Description

How Did You Test This Change?

[codecov-commenter]

Codecov Report

❌ Patch coverage is 20.83333% with 19 lines in your changes missing coverage. Please review.
✅ Project coverage is 48.04%. Comparing base (729275c) to head (9a85dc7).
⚠️ Report is 288 commits behind head on develop.

Files with missing lines	Patch %	Lines
...e/rocketmq/remoting/netty/NettyRemotingClient.java	0.00%	8 Missing ⚠️
...rocketmq/client/impl/factory/MQClientInstance.java	25.00%	5 Missing and 1 partial ⚠️
.../java/org/apache/rocketmq/client/ClientConfig.java	37.50%	5 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             develop    #9291      +/-   ##
=============================================
- Coverage      48.13%   48.04%   -0.10%     
+ Complexity     12124    12104      -20     
=============================================
  Files           1322     1322              
  Lines          93139    93163      +24     
  Branches       11943    11947       +4     
=============================================
- Hits           44832    44756      -76     
- Misses         42776    42863      +87     
- Partials        5531     5544      +13     

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

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.