[react] Move useEffectEvent to Canary

[eps1lon]

Types for facebook/react#34610

[eps1lon]

Will be available once reactjs/react.dev#8025 lands

[typescript-bot]

@eps1lon Thank you for submitting this PR!

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1 package in this PR

• react — on npm, on unpkg (author is owner)

Code Reviews

Because this is a widely-used package, a DT maintainer will need to review it before it can be merged.

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• ✅ Continuous integration tests have passed
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---

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[typescript-bot]

🔔 @johnnyreilly @bbenezech @pzavolinsky @ericanderson @DovydasNavickas @theruther4d @guilhermehubner @ferdaber @jrakotoharisoa @pascaloliv @Hotell @franklixuefei @Jessidhia @saranshkataria @lukyth @zieka @dancerphil @dimitropoulos @disjukr @vhfmag @priyanshurav @Semigradsky @mattpocock — please review this PR in the next few days. Be sure to explicitly select Approve or Request Changes in the GitHub UI so I know what's going on.