feat: add typescript support

[bahmutov]

closes #94

🚨 BLOCKED by bahmutov/find-test-names#8

[Narretz]

Correct me if I'm wrong, but does the test actually make sure typescript is parsed? Because it will run the specs if parsing fails, right?

You could redirect the output of cypress-expect to a text file, and then verify "Could not determine test names in file: ts-spec.ts" is not in it.

[bahmutov]

I mean, nothing even is necessary - if it fails to parse it (like in this case if there is interface or type in the TS code), it simply runs the TS spec and relies on the runtime it overwrite to get the title and tags and skip the tests, it will be just unexpected empty spec. Not the worst thing in the world, and some specs would work correctly.

[bahmutov]

Ok, it is probably better than nothing!

[github-actions]

🎉 This PR is included in version 2.12.0 🎉

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