fix(forge): Fix double model kwarg error in AnthropicProvider.create_chat_completion(..)

[Pwuts]

I ran into this error while trying to run git_log_to_release_notes.py

Changes 🏗️

• Fix double model kwarg error in AnthropicProvider.create_chat_completion(..)

Checklist 📋

For code changes:

• I have clearly listed my changes in the PR description

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Please upload report for BASE (dev@f00654c). Learn more about missing BASE report.

Additional details and impacted files

@@          Coverage Diff           @@
##             dev    #8666   +/-   ##
======================================
  Coverage       ?   58.16%           
======================================
  Files          ?      106           
  Lines          ?     5765           
  Branches       ?      720           
======================================
  Hits           ?     3353           
  Misses         ?     2306           
  Partials       ?      106           

Flag	Coverage Δ
Linux	57.86% <ø> (?)
Windows	54.64% <ø> (?)
forge	58.03% <ø> (?)
macOS	57.03% <ø> (?)

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