Add support for typescript handlers

[WhiteAutumn]

Since the current LTS version of node, node 24, supports running typescript directly without any flag, it would be an improvement in developer experience to allow lambda functions to use typescript files for their handlers.

Description of changes:

• Added support for using typescript files as lambda function handlers on supported node versions
• Added test coverage for the new behavior. The tests that import and run typescript only run on supported runtimes and are skipped otherwise.

Target: Managed Runtime

Checklist

• I have run npm install to generate the package-lock.json correctly and included it in the PR.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.