[INLONG-1568][TubeMQ] C++ SDK cant not return the whether the partition has been registered correctly

[gosonzhang]

Fixes #1568

[codecov-commenter]

Codecov Report

Merging #1576 (2edeba8) into master (5807044) will decrease coverage by 0.00%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #1576      +/-   ##
============================================
- Coverage     12.19%   12.19%   -0.01%     
- Complexity     1046     1048       +2     
============================================
  Files           392      392              
  Lines         32755    32755              
  Branches       5159     5159              
============================================
- Hits           3996     3994       -2     
  Misses        27995    27995              
- Partials        764      766       +2     

Impacted Files	Coverage Δ
.../java/org/apache/flume/sink/tubemq/TubemqSink.java	51.42% <0.00%> (-4.00%)	⬇️
.../producer/qltystats/DefaultBrokerRcvQltyStats.java	45.31% <0.00%> (+1.17%)	⬆️
.../client/producer/qltystats/BrokerStatsItemSet.java	72.09% <0.00%> (+4.65%)	⬆️

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[dockerzhang]

+1