feat: add aws bedrock to AgentComponent

[edwinjosechittilappilly]

This pull request enhances the integration with Amazon Bedrock by adding support for new AWS models and regions, and updating the relevant components to use these new constants. The most important changes include the addition of new AWS model IDs and regions, and the modification of components to utilize these constants.

Enhancements to AWS Model and Region Support:

• src/backend/base/langflow/base/models/aws_constants.py: Added new constants AWS_MODEL_IDs and AWS_REGIONS to list supported AWS model IDs and regions.

Integration with Amazon Bedrock Components:

• src/backend/base/langflow/base/models/model_input_constants.py: Included AmazonBedrockComponent and its input fields in the model input constants. [1] [2] [3] [4]
• src/backend/base/langflow/components/embeddings/amazon_bedrock.py: Updated AmazonBedrockEmbeddingsComponent to use AWS_REGIONS for region selection and added default values for AWS credentials. [1] [2] [3] [4]
• src/backend/base/langflow/components/models/amazon_bedrock.py: Updated AmazonBedrockComponent to use AWS_MODEL_IDs and AWS_REGIONS for model ID and region selection, and added default values for AWS credentials. [1] [2] [3] [4] [5]

[codspeed-hq]

CodSpeed Performance Report

Merging #4515 will degrade performances by 13.97%

_{Comparing feat-add-aws-bedrock-simple-agents (9909c1b) with main (4f90552)}

Summary

❌ 1 regressions
✅ 14 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	main	feat-add-aws-bedrock-simple-agents	Change
❌	test_invalid_run_with_input_type_chat	13.9 ms	16.2 ms	-13.97%