Use node16 in tsconfig.json

[timotheeguerin]

Use typespec recommended tsconfig setting https://microsoft.github.io/typespec/extending-typespec/basics#4-create-libts, this is needed to correctly support node exports.

Switch module and moduleResolution to use node16 to tell typescript that it should resolve modules following node 16+ exports

See this stackoverflow for details https://stackoverflow.com/questions/58990498/package-json-exports-field-not-working-with-typescript

Change in last release of typescript removed the typesVersions which was the legacy way of specifying the types for additional path. So this setting is required to work correctly with node exports

[timotheeguerin]

Change to this file shouldn't actually be needed if you prefer to stay to nodenext

[MaryGao]

Thanks for the change! The issue we found happens in dev version e.g "@azure-tools/typespec-azure-core": "0.35.0-dev.11" and see pr #2053. And in our main we use the stable version not dev one.

Can you also make a pr to apply your change in my test branch? So we could verify it works or not.

[timotheeguerin]

That change should happen regardless of the version of typespec that you are using. You might get into the same issue with other packages in the future. So I would just merge that if it is not causing any issues anyway. If there is more problem to the dev version then we can investigate further.

[MaryGao]

LGTM