refactor: better support typescript

[climba03003]

Checklist

• run npm run test and npm run benchmark
• tests and/or benchmarks are included
• documentation is changed or added
• commit message and code follows the Developer's Certification of Origin
  and the Code of conduct

[climba03003]

Double checked the test is failed even in current master.

[mcollina]

Can you fix it?

[mcollina]

Tests are fixed on master

[climba03003]

The changes here is lazy check typescript environment only when TypeScript extension is used.
It support more case like --loader ts-node/esm, .mts and .cts.

It may land in main if not using ??=

[mcollina]

Then can you make so? ;)

[mcollina]

lgtm

[melroy89]

@climba03003 Thank you for this! I know this was already in merged in May, but still I wanted to thank you.