Clean up tmp dirs of udf and sort while starting up

[JackieTien97]

This pull request introduces improvements to resource cleanup and thread safety in the DataNode service, focusing on temporary directories and query data file management. The main changes ensure that stale temporary files and directories are properly cleaned up during startup and shutdown, and that access to shared data structures is thread-safe.

Resource cleanup improvements:

• Added cleanup of stale sort temporary directories during DataNode startup by introducing a new cleanupSortTmpDir method and invoking it in the setUp process. [1] [2]
• In TemporaryQueryDataFileService, stale temporary directories are now deleted at startup and shutdown to prevent accumulation of unused files. [1] [2]

Thread safety enhancements:

• Updated registration of SerializationRecorder objects to use a synchronized list, ensuring thread-safe access to the recorders map.

Minor code cleanup:

• Removed an outdated TODO comment and improved comment formatting in ExecutableManager. [1] [2]
• Added a missing import for Collections in TemporaryQueryDataFileService.

[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

[codecov]

Codecov Report

❌ Patch coverage is 47.05882% with 9 lines in your changes missing coverage. Please review.
✅ Project coverage is 39.78%. Comparing base (d1ae3ce) to head (4f19a31).
⚠️ Report is 4 commits behind head on master.

Files with missing lines	Patch %	Lines
...ain/java/org/apache/iotdb/db/service/DataNode.java	0.00%	7 Missing ⚠️
...otdb/db/service/TemporaryQueryDataFileService.java	80.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #17377      +/-   ##
============================================
- Coverage     39.78%   39.78%   -0.01%     
  Complexity      312      312              
============================================
  Files          5127     5127              
  Lines        346311   346324      +13     
  Branches      44105    44106       +1     
============================================
- Hits         137785   137774      -11     
- Misses       208526   208550      +24     

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