feat: add the audit gc

[chlins]

This pull request introduces a new garbage collection (GC) task for cleaning up audit records in the Dragonfly Manager. The most important changes include adding the audit GC task implementation, registering it with the GC scheduler, and defining default configurations for this task.

New Audit GC Task Implementation:

• Added audit GC task: Implemented a new GC task in manager/gc/audit.go to periodically delete outdated audit records. The task includes configurations for batch size, interval, and timeout, and uses a RunGC method to perform the cleanup. It also integrates a job recorder to log GC results.

Integration with GC Scheduler:

• Registered the audit GC task: Updated the manager/manager.go file to register the new audit GC task with the GC scheduler during server initialization.

Description

Related Issue

#3811
#3938

Motivation and Context

Screenshots (if appropriate)

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation Update (if none of the other choices apply)

Checklist

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.

[Liam-Zhao]

LGTM

[codecov]

Codecov Report

❌ Patch coverage is 0% with 49 lines in your changes missing coverage. Please review.
✅ Project coverage is 34.29%. Comparing base (50083ff) to head (e2c76d9).
⚠️ Report is 203 commits behind head on main.

Files with missing lines	Patch %	Lines
manager/gc/audit.go	0.00%	44 Missing ⚠️
manager/manager.go	0.00%	3 Missing ⚠️
manager/gc/job.go	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3996      +/-   ##
==========================================
- Coverage   34.31%   34.29%   -0.03%     
==========================================
  Files         342      343       +1     
  Lines       40139    40186      +47     
==========================================
+ Hits        13775    13783       +8     
- Misses      25454    25497      +43     
+ Partials      910      906       -4     

Flag	Coverage Δ
unittests	34.29% <0.00%> (-0.03%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
manager/gc/job.go	0.00% <0.00%> (ø)
manager/manager.go	0.00% <0.00%> (ø)
manager/gc/audit.go	0.00% <0.00%> (ø)

... and 4 files with indirect coverage changes

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