fix(types): JSONParsed infer unknown values

[BarryThePenguin]

Changes JSONParsed so it will infer unknown values as JSONValue.

I also included handling for bigint so JSONParsed will be never, indicating that an error will be thrown.

fixes #4368

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 91.25%. Comparing base (6792789) to head (4f8954d).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4405   +/-   ##
=======================================
  Coverage   91.25%   91.25%           
=======================================
  Files         171      171           
  Lines       10909    10909           
  Branches     3143     3143           
=======================================
  Hits         9955     9955           
  Misses        953      953           
  Partials        1        1           

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[BarryThePenguin]

I think this change could be a seperate PR.

From what I understand JSONParsed already contains types that do the same thing as SimplifyDeepArray, specifically

...
  : T extends ReadonlyArray<unknown>
  ? { [K in keyof T]: JSONParsed<InvalidToNull<T[K]>> }
  : ...

compared with SimplifyDeepArray

type SimplifyDeepArray<T> = T extends any[]
  ? { [E in keyof T]: SimplifyDeepArray<T[E]> }
  : Simplify<T>

[yusukebe]

Indeed. We can remove SimplifyDeepArray. For now, I'll merge this PR.

[yusukebe]

LGTM!

[yusukebe]

@BarryThePenguin

Thank you! Looks good.