feat: Create a GH Action to deploy on AWS

[tusharmath]

Create a github action to deploy your tailcall configuration on AWS:

- uses: tailcall/gh-action
  with:
    deploy:
      - aws:
        access_key: ${{ secrets.AWS_ACCESS_KEY_ID }}
        secret_access_key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
        config: ./tailcall.graphql

Technical Requirements

• Keep the action clean and reusable for other partners.
• Ensure enough unit tests have been added for the actions.
• Deployment should be on AWS Lambda and publicly accessible
• The tailcall configuration should be picked up from the repo.
• Ensure the user experience is simple & smooth.

Additional Information

• https://github.com/tailcallhq/tailcall-on-aws