cft parameter AgentAssistLLMBedrockModelId - allowed value mismatch

[jyjohnson]

The main cft template (lca-main.yaml) has the following parameter:

AgentAssistLLMBedrockModelId:
Type: String
Default: anthropic.claude-3-haiku-20240307-v1:0
AllowedValues:
- "anthropic.claude-3-haiku-20240307-v1:0"
- "anthropic.claude-3-sonnet-20240229-v1:0"
- "anthropic.claude-3-5-sonnet-20240620-v1:0"
Description: Choose Bedrock modelId'

However, the Agent Assist cft (https://s3.us-east-1.amazonaws.com/aws-ml-blog-us-east-1/artifacts/lca/0.9.4/lca-agentassist-setup-stack/template.yaml) does not have anthropic.claude-3-5-sonnet-20240620-v1:0 in the AllowedValue list, so the whole cft will fail to deploy if that LLM is selected.