[Bug]: Incorrect parsing of new bedrock model names

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What happened?

The new names for models released on bedrock have region prepended to them, example, us.anthropic.claude-3-5-sonnet-20241022-v2:0 for new 3.5 sonnet, us.anthropic.claude-3-5-haiku-20241022-v1:0 for new 3.5 haiku, us.meta.llama3-2-90b-instruct-v1:0 for meta 3.2 vision instruct.

This breaks the parsing of provider in the bedrock logic as it tries to separate the model name by . and fetch the first element.

Relevant log output

Error during streaming response: litellm.NotFoundError: BedrockException - Bedrock HTTPX: Unknown provider=us, model=us.meta.llama3-2-90b-instruct-v1:0

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This was resolved in the recent versions