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.