Fix: 会话更新依赖注入缺少缓存和上下文管理

[yanyongyu]

No description provided.

[github-actions]

🚀 Deployed on https://deploy-preview-1807--nonebot2.netlify.app

[codecov]

Codecov Report

Merging #1807 (a0a92d8) into master (fee1608) will decrease coverage by 0.04%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1807      +/-   ##
==========================================
- Coverage   87.98%   87.94%   -0.04%     
==========================================
  Files          44       44              
  Lines        3170     3170              
==========================================
- Hits         2789     2788       -1     
- Misses        381      382       +1     

Flag	Coverage Δ
unittests	87.94% <100.00%> (-0.04%)	⬇️

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

Impacted Files	Coverage Δ
nonebot/internal/matcher/matcher.py	97.50% <100.00%> (ø)

... and 1 file with indirect coverage changes

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