feat: AWS Lambda Handler

[aheissenberger]

Add AWS Lambda as a direct target to avoid double wrapping of the middleware.

Currently I have to use Hono or Hattip target and then use the wrapper for AWS Lambda to create a working entry point.

Adapters:
Hono / AWS Lambda: https://github.com/honojs/hono/tree/main/src/adapter/aws-lambda
Hattip / AWS Lambda: https://github.com/hattipjs/hattip/tree/main/packages/adapter/adapter-aws-lambda

Optional:
AWS API gateway provides routing which would allow to split the application in different smaller packages when each route provides its own entry point.