fix: LiteLlm use local model cost for tests

[kevdevg]

No description provided.

[coveralls]

Pull Request Test Coverage Report for Build 12640049828

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 20 unchanged lines in 3 files lost coverage.
• Overall coverage increased (+13.5%) to 94.023%

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Files with Coverage Reduction	New Missed Lines	%
scope3ai/tracers/openai/chat.py	1	86.75%
scope3ai/worker.py	5	89.69%
scope3ai/lib.py	14	89.88%

Totals
Change from base Build 12553763769:	13.5%
Covered Lines:	1463
Relevant Lines:	1556

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💛 - Coveralls