feat: add invokemodel api for gpt models in bedrock

[hustxiayang]

Description
add invokemodel api for gpt models in bedrock

[codecov-commenter]

Codecov Report

❌ Patch coverage is 76.29630% with 32 lines in your changes missing coverage. Please review.
✅ Project coverage is 83.20%. Comparing base (932c4e2) to head (8241f89).

Files with missing lines	Patch %	Lines
internal/translator/openai_awsopenai.go	75.93%	19 Missing and 13 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1624      +/-   ##
==========================================
- Coverage   83.26%   83.20%   -0.07%     
==========================================
  Files         137      138       +1     
  Lines       12051    12186     +135     
==========================================
+ Hits        10034    10139     +105     
- Misses       1410     1427      +17     
- Partials      607      620      +13     

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