🦙 feat: update AWS Bedrock pricing and token metadata for Meta models

[danny-avila]

Summary

I updated the AWS Bedrock pricing and token metadata for Meta's Llama models to ensure accurate pricing calculations and token limits.

• Updated the Bedrock pricing values in api/models/tx.js for various Llama 2 and Llama 3 models, adding support for different naming patterns.
• Updated the token limits in api/utils/tokens.js for Meta's Llama models, including additional patterns to cover multiple naming conventions.
• Ensured comprehensive patterns to match the various ways Llama models are referenced, improving the accuracy of model matching.

Change Type

• New feature (non-breaking change which adds functionality)

Testing

I tested the pricing calculations and token limit retrieval for the updated Llama models to ensure they return the correct values.

Checklist

• My code adheres to this project's style guidelines
• I have performed a self-review of my own code
• My changes do not introduce new warnings