feat: add Amazon Textract integration (#2391)

[zafatar]

Add AmazonTextractConverter component that extracts text from images and single-page PDFs using the AWS Textract synchronous API. Supports both DetectDocumentText (plain OCR) and AnalyzeDocument (tables, forms, signatures, layout) as well as natural-language queries. Includes CI workflow, unit/integration tests, pydoc config, and repo-level wiring (labeler, coverage comment, README).

Related Issues

• fixes Add support for AWS textract #2391

Proposed Changes:

Similar to the other converter tools such as Azure Document Intelligence or other Amazon resources such as Amazon Bedrock, it covers the access to the Amazon Textract by using boto3 and AWS credentials from the environment variables.

How did you test it?

The tests are run as two separate groups:

cd ./integrations/amazon_textract
hatch run test:unit
hatch run test:integration

Notes for the reviewer

Checklist

• I have read the contributors guidelines and the code of conduct
• I have updated the related issue with new insights and changes
• I added unit tests and updated the docstrings
• I've used one of the conventional commit types for my PR title: fix:, feat:, build:, chore:, ci:, docs:, style:, refactor:, perf:, test:.

[CLAassistant]

All committers have signed the CLA.