fix: aws bedrock load db credentials issue

[edwinjosechittilappilly]

This pull request includes changes to the AmazonBedrockEmbeddingsComponent and AmazonBedrockComponent classes to update the configuration of AWS session tokens and credentials profiles.

Changes to AWS session token configuration:

• src/backend/base/langflow/components/embeddings/amazon_bedrock.py: Changed the advanced attribute of the aws_session_token input from True to False to make it a non-advanced setting.
• src/backend/base/langflow/components/models/amazon_bedrock.py: Changed the advanced attribute of the aws_session_token input from True to False, removed the value attribute, and set load_from_db to False.

Changes to AWS credentials profile configuration:

• src/backend/base/langflow/components/models/amazon_bedrock.py: Removed the value attribute from the AWS_CREDENTIALS_PROFILE_NAME input to simplify the configuration.

[edwinjosechittilappilly]

@ogabrielluiz
If necessary, we can move the session token to the advanced section. However, based on feedback from LF, we noted that several users frequently require the session token field, so we will keep it accessible and not move it to advanced.

Additionally, I have removed the default value in cases where the load from the database is set to False.

[codspeed-hq]

CodSpeed Performance Report

Merging #4537 will improve performances by 16.67%

_{Comparing fix-aws-bedrock-load-db-cred (ae24829) with main (70ebfc4)}

Summary

⚡ 1 improvements
✅ 14 untouched benchmarks

Benchmarks breakdown

	Benchmark	main	fix-aws-bedrock-load-db-cred	Change
⚡	test_successful_run_with_input_type_any	532.1 ms	456.1 ms	+16.67%

[ogabrielluiz]

LGTM