next.js

fffa2831 - Upgrade React from `ead92181-20251010` to `d7215b49-20251013` (#84850)

Upgrade React from `ead92181-20251010` to `d7215b49-20251013` (#84850) [diff facebook/react@ead92181...d7215b49](https://github.com/facebook/react/compare/ead92181...d7215b49) <details> <summary>React upstream changes</summary> - https://github.com/facebook/react/pull/34829 - https://github.com/facebook/react/pull/34827 - https://github.com/facebook/react/pull/34824 - https://github.com/facebook/react/pull/34823 - https://github.com/facebook/react/pull/34831 - https://github.com/facebook/react/pull/34821 </details>