fix: Release compaction task lock when return function

[xiaocai2333]

issue: #38851

[mergify]

@xiaocai2333 go-sdk check failed, comment rerun go-sdk can trigger the job again.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 4 lines in your changes missing coverage. Please review.

Project coverage is 81.12%. Comparing base (56c5b66) to head (9267a9d).
Report is 5 commits behind head on master.

Files with missing lines	Patch %	Lines
internal/datacoord/compaction.go	0.00%	3 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #38856      +/-   ##
==========================================
- Coverage   81.13%   81.12%   -0.01%     
==========================================
  Files        1385     1385              
  Lines      195931   195931              
==========================================
- Hits       158960   158944      -16     
- Misses      31381    31391      +10     
- Partials     5590     5596       +6     

Components	Coverage Δ
Client	79.12% <ø> (ø)
Core	69.45% <ø> (-0.01%)	⬇️
Go	83.09% <0.00%> (-0.01%)	⬇️

Files with missing lines	Coverage Δ
internal/datacoord/compaction.go	71.10% <0.00%> (-0.28%)	⬇️

... and 36 files with indirect coverage changes

[xiaocai2333]

rerun go-sdk

[czs007]

/approve
/lgtm

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: czs007, xiaocai2333

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[sre-ci-robot]

New changes are detected. LGTM label has been removed.