[To dev/1.3] PipePlugin: Optimized the errorCode && Fixed the case-sensitive semantic (#16851)

[Caideyipi]

Description

As the title said.

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This PR has:

• been self-reviewed.
  • concurrent read
  • concurrent write
  • concurrent read and write
• added documentation for new or modified features or behaviors.
• added Javadocs for most classes and all non-trivial methods.
• added or updated version, license, or notice information
• added comments explaining the "why" and the intent of the code wherever would not be obvious
  for an unfamiliar reader.
• added unit tests or modified existing tests to cover new code paths, ensuring the threshold
  for code coverage.
• added integration tests.
• been tested in a test IoTDB cluster.

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Key changed/added classes (or packages if there are too many classes) in this PR

[codecov]

Codecov Report

❌ Patch coverage is 37.77778% with 28 lines in your changes missing coverage. Please review.
✅ Project coverage is 41.12%. Comparing base (ef4c336) to head (757bb98).
⚠️ Report is 3 commits behind head on dev/1.3.

Files with missing lines	Patch %	Lines
...ion/config/executor/ClusterConfigTaskExecutor.java	37.77%	28 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             dev/1.3   #16852      +/-   ##
=============================================
+ Coverage      41.10%   41.12%   +0.01%     
  Complexity       198      198              
=============================================
  Files           3589     3589              
  Lines         236014   236021       +7     
  Branches       28510    28509       -1     
=============================================
+ Hits           97022    97067      +45     
+ Misses        138992   138954      -38     

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud