test: テスト用サーバーのconsole.logを減らす

[adzukimame]

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[github-actions]

このPRによるapi.jsonの差分
差分はありません。
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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 43.58%. Comparing base (f6ddd21) to head (c3facaa).
Report is 1 commits behind head on develop-mame.

Additional details and impacted files

@@              Coverage Diff              @@
##           develop-mame     #351   +/-   ##
=============================================
  Coverage         43.58%   43.58%           
=============================================
  Files              1186     1186           
  Lines            149915   149915           
  Branches           3455     3455           
=============================================
+ Hits              65341    65345    +4     
+ Misses            84574    84570    -4     

Flag	Coverage Δ
backend_e2e	55.58% <ø> (+<0.01%)	⬆️
backend_unit	27.77% <ø> (+<0.01%)	⬆️
frontend_vitest	25.65% <ø> (ø)
misskey-js	92.77% <ø> (ø)

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