next.js

6cc85dea - Add partial support for `"use cache"` in metadata route handlers (#74835)

Add partial support for `"use cache"` in metadata route handlers (#74835) Adds support for using `"use cache"` in the special metadata route handlers like [`sitemap.ts`](https://nextjs.org/docs/app/api-reference/file-conventions/metadata/sitemap#generating-a-sitemap-using-code-js-ts), [`opengraph-image.tsx`](https://nextjs.org/docs/app/api-reference/file-conventions/metadata/opengraph-image#generate-images-using-code-js-ts-tsx), [`icon.tsx`](https://nextjs.org/docs/app/api-reference/file-conventions/metadata/app-icons#generate-icons-using-code-js-ts-tsx), and other [metadata files](https://nextjs.org/docs/app/api-reference/file-conventions/metadata). reverts #71225 fixes #74146 closes NAR-51 As a follow-up we need to ensure that opengraph image responses do not bail out of static generation when `dynamicIO` is enabled.