Make typings compatible with v19

[Philipp91]

Fixes #4011.

To test this, I ran yarn install locally and verified that the aforementioned dist files no longer reference global JSX, but use React.JSX instead.

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Name	Status	Preview	Comments	Updated (UTC)
formik-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Dec 7, 2024 3:28pm

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[Hatko]

@jaredpalmer @quantizor Could you please take a look? The PR seems to be very small to review