fixbug: llm.timeout not working

[iorisa]

Features
fixbug: #1059

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 96.15385% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 81.63%. Comparing base (adb42f4) to head (b42cf5c).
Report is 4 commits behind head on main.

Files	Patch %	Lines
metagpt/configs/llm_config.py	83.33%	1 Missing ⚠️
metagpt/provider/base_llm.py	92.30%	1 Missing ⚠️
metagpt/provider/openai_api.py	90.90%	1 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1060      +/-   ##
==========================================
- Coverage   81.70%   81.63%   -0.08%     
==========================================
  Files         246      246              
  Lines       13734    13752      +18     
==========================================
+ Hits        11221    11226       +5     
- Misses       2513     2526      +13     

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[geekan]

Although I think this still costs understanding, it may solve part of the problem.