Update react monorepo to v19.2.3

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
react (source)	19.2.1 -> 19.2.3
react-dom (source)	19.2.1 -> 19.2.3

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Release Notes

facebook/react (react)

v19.2.3: 19.2.3 (December 11th, 2025)

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React Server Components

• Add extra loop protection to React Server Functions (@​sebmarkbage#​35351)

v19.2.2: 19.2.2 (December 11th, 2025)

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React Server Components

• Move react-server-dom-webpack/*.unbundled to private react-server-dom-unbundled (@​eps1lon#​35290)
• Patch Promise cycles and toString on Server Functions (@​sebmarkbage, @​unstubbable#​35289)

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