feat: add playground and graphl path env variables to aws-router-lambda

[miguelwebtales]

Motivation and Context

I need this feature to implement my solution with AWS lambda router.

Related with this issue: #871

TODO

• [ ] Tests or benchmark included
• [ ] Documentation is changed or added on https://app.gitbook.com/
• [ ] PR title must follow conventional-commit-standard

[StarpTech]

Hi @miguelwebtales thanks for the contribution. We'll take a look in due course.

[github-actions[bot]]

This PR was marked stale due to lack of activity. It will be closed in 14 days.

[github-actions[bot]]

Closed as inactive. Feel free to reopen if this PR is still being worked on.