Feature- Python runtime support for Lambda Web Functions #102

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Description
Add a managed Python runtime for Lambda Web Functions, so you can deploy Python web applications and APIs that listen on a port and serve HTTP requests directly. You would use standard Python web frameworks such as FastAPI, Flask, and Django, with standard application servers such as Uvicorn and Gunicorn, without Lambda-specific adapters or handler code.

Additional context
Lambda Web Functions run your web application as an HTTP server. Lambda provides an HTTPS endpoint, routes requests to the address in the AWS_LAMBDA_HTTP_ENDPOINT environment variable, and runs many concurrent requests in each execution environment. Today, Web Functions support Node.js only.