Fix: 修复 ruff 发现的问题

[yanyongyu]

No description provided.

[codecov]

Codecov Report

Merging #2286 (7b0fd33) into master (53bcae0) will not change coverage.
The diff coverage is 33.33%.

@@           Coverage Diff           @@
##           master    #2286   +/-   ##
=======================================
  Coverage   89.80%   89.80%           
=======================================
  Files          46       46           
  Lines        3345     3345           
=======================================
  Hits         3004     3004           
  Misses        341      341           

Flag	Coverage Δ
unittests	89.80% <33.33%> (ø)

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

Files Changed	Coverage Δ
nonebot/drivers/httpx.py	91.66% <0.00%> (ø)
nonebot/drivers/websockets.py	69.51% <0.00%> (ø)
nonebot/internal/matcher/manager.py	70.00% <100.00%> (ø)

[github-actions]

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