Update Claude models for Amazon Bedrock

[jmcphers]

Adds support for new Anthropic models on Bedrock (Claude 4.5 Sonnet & Claude 4.1 Opus).

Also removes Claude 3.5 as it's soon to be deprecated: https://aws.amazon.com/blogs/machine-learning/migrate-from-anthropics-claude-3-5-sonnet-to-claude-4-sonnet-on-amazon-bedrock/

Addresses #9643, #9339

[github-actions]

E2E Tests 🚀
This PR will run tests tagged with: @:critical

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[jmcphers]

It looks like Bedrock doesn't yet allow us to query the new models directly.

Instead you need to create an inference profile. It's not clear whether this is something we need to adapt to in the API or whether this is just a restriction on very new models to help gate/balance access.

[timtmok]

I get the same error after checking that the model is accessible in AWS. I also saw there's an inference profile set for Claude 4.5 that was recently added. I think it's a configuration problem in AWS.

[timtmok]

So it does work when using the ARN that's set in the inference profile. All that had to be done is use the ARN in place of the model id. The Bedrock SDK should be able to query for available models and get the ARN. I haven't looked into when it's necessary to use the ARN as well as how to query if the model is accessible. My model queries so far have returned far more models that I would expect (looks to be all models from various providers).