generic inferred from `keyof` has value of implicit `any` when `noImplicitAny` is `true`

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Bug Report

🔎 Search Terms

keyof generic noImplicitAny

🕗 Version & Regression Information

4.5.0-dev.20210927

⏯ Playground Link

Playground link with relevant code

💻 Code

declare function foo<T>(value: keyof T): T

const bar = foo('asdf') //type is { asdf: any }

🙁 Actual behavior

type is inferred as { asdf: any }

🙂 Expected behavior

type is inferred as { asdf: unknown }, or a noImplicitAny error occurs