fix potential Netty IO blocking in TripleProtocol connection handling…

[ankitshokeen]

… #13041

What is the purpose of the change?

This PR fixes Netty IO blocking in TripleProtocol's NettyConnectionClient to prevent client-side request timeouts and improve stability when using the triple protocol.

Checklist

• Make sure there is a GitHub_issue field for the change.
• Write a pull request description that is detailed enough to understand what the pull request does, how, and why.
• Write necessary unit-test to verify your logic correction. If the new feature or significant change is committed, please remember to add sample in dubbo samples project.
• Make sure gitHub actions can pass. Why the workflow is failing and how to fix it?

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 40.00000% with 9 lines in your changes missing coverage. Please review.

Project coverage is 35.59%. Comparing base (731612b) to head (065a0dc).

Files with missing lines	Patch %	Lines
...moting/transport/netty4/NettyConnectionClient.java	40.00%	8 Missing and 1 partial ⚠️

❗ There is a different number of reports uploaded between BASE (731612b) and HEAD (065a0dc). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (731612b)	HEAD (065a0dc)
unit-tests	1	0

Additional details and impacted files

@@              Coverage Diff              @@
##                3.3   #15283       +/-   ##
=============================================
- Coverage     60.75%   35.59%   -25.17%     
+ Complexity    10917    10859       -58     
=============================================
  Files          1886     1886               
  Lines         86097    86112       +15     
  Branches      12896    12896               
=============================================
- Hits          52310    30653    -21657     
- Misses        28333    50981    +22648     
+ Partials       5454     4478      -976     

Flag	Coverage Δ
integration-tests	33.00% <40.00%> (-0.20%)	⬇️
samples-tests	29.53% <40.00%> (+0.16%)	⬆️
unit-tests	?

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.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[ankitshokeen]

Hi @iJIAJIA, @AlbumenJ, @JunJieLiu51520 could you please take a look and let me know if there are any further changes I should make? One of the CI tests is currently failing because it depends on a separate PR.
issue worked on #13041