Upgrade React from `b0c1dc01-20250925` to `df38ac9a-20250926`#84276

eps1lon merged 8 commits intocanaryvercel/next.js:canaryfrom

update/react/19.2.0-canary-df38ac9a-20250926vercel/next.js:update/react/19.2.0-canary-df38ac9a-20250926Copy head branch name to clipboard