fix!: add sharp timeout of 10 seconds (#65517)
This PR [configures
sharp](https://sharp.pixelplumbing.com/api-output#timeout) with a
timeout of 10 seconds when optimizing an image.
Anything longer will throw an error which we will catch and [fallback to
serving the unoptimized source
image](https://github.com/vercel/next.js/blob/c942006d83d504822ff2f6822fa2608e8e773324/packages/next/src/server/image-optimizer.ts#L637).
Closes NEXT-3359
