optimize: modify the default log of the recovery middleware

[li-jin-gou]

What type of PR is this?

optimize

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修改 recovery 中间件的默认日志

Which issue(s) this PR fixes:

[codecov]

Codecov Report

Base: 64.52% // Head: 64.52% // Decreases project coverage by -0.00% ⚠️

Coverage data is based on head (ab14981) compared to base (3a6bb4a).
Patch coverage: 100.00% of modified lines in pull request are covered.

❗ Current head ab14981 differs from pull request most recent head a43d18b. Consider uploading reports for the commit a43d18b to get more accurate results

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #322      +/-   ##
===========================================
- Coverage    64.52%   64.52%   -0.01%     
===========================================
  Files           85       85              
  Lines         8319     8318       -1     
===========================================
- Hits          5368     5367       -1     
  Misses        2588     2588              
  Partials       363      363              

Impacted Files	Coverage Δ
pkg/app/middlewares/server/recovery/option.go	100.00% <100.00%> (ø)
pkg/app/middlewares/server/recovery/recovery.go	79.54% <0.00%> (-6.82%)	⬇️
pkg/common/compress/compress.go	83.80% <0.00%> (+2.85%)	⬆️

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[welkeyever]

应该还有个unused func一并移除了吧