[ISSUE #9737] Fix client memory leak on connection failure

[qianye1001]

Which Issue(s) This PR Fixes

Fixes #9737

Brief Description

How Did You Test This Change?

[fuyou001]

LGTM

[codecov-commenter]

Codecov Report

❌ Patch coverage is 30.76923% with 9 lines in your changes missing coverage. Please review.
✅ Project coverage is 48.29%. Comparing base (d750461) to head (bfd3d83).

Files with missing lines	Patch %	Lines
...e/rocketmq/remoting/netty/NettyRemotingClient.java	30.76%	9 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             develop    #9740      +/-   ##
=============================================
- Coverage      48.35%   48.29%   -0.06%     
+ Complexity     12270    12255      -15     
=============================================
  Files           1314     1314              
  Lines          93875    93875              
  Branches       12040    12041       +1     
=============================================
- Hits           45395    45340      -55     
- Misses         42867    42911      +44     
- Partials        5613     5624      +11     

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