update gpt-3.5-turbo-0125 in count_message_tokens

[RuifengFu]

Features

• fix https://github.com/geekan/MetaGPT/issues/1019

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 82.74%. Comparing base (eb8e846) to head (c9f6a52).

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Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1020   +/-   ##
=======================================
  Coverage   82.73%   82.74%           
=======================================
  Files         224      224           
  Lines       13135    13135           
=======================================
+ Hits        10867    10868    +1     
+ Misses       2268     2267    -1     

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[iorisa]

LGTM