Minor Changes

• 4cb71d0: feat(anthropic-aws): add Claude Platform on AWS provider to the v5 release line

  Backports the @ai-sdk/anthropic-aws provider to AI SDK v5, adapted to the V2 provider specification (LanguageModelV2 / ProviderV2). The provider wraps the Anthropic Messages API hosted on AWS, authenticated with AWS SigV4 or an AWS-provisioned API key.