fix: [Cherry-pick] access log retention new log not the old and skip rotate empty log

[aoiasd]

pr: #38309
relate: #38293

[codecov]

Codecov Report

Attention: Patch coverage is 75.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 79.43%. Comparing base (7363a1c) to head (a42a517).
Report is 10 commits behind head on 2.4.

Files with missing lines	Patch %	Lines
internal/proxy/accesslog/writer.go	75.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              2.4   #38661      +/-   ##
==========================================
- Coverage   80.38%   79.43%   -0.96%     
==========================================
  Files        1077     1077              
  Lines      169449   169452       +3     
==========================================
- Hits       136219   134611    -1608     
- Misses      28748    30352    +1604     
- Partials     4482     4489       +7     

Files with missing lines	Coverage Δ
internal/proxy/accesslog/writer.go	83.02% <75.00%> (-0.93%)	⬇️

... and 89 files with indirect coverage changes

[xiaofan-luan]

/lgtm
/approve

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: aoiasd, xiaofan-luan

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