feat: add `fetchPriority` to `next/image` (#47222)
- Closes #43096
- Available since Chrome 101:
https://chromestatus.com/feature/5273474901737472
- Coming to Safari: https://bugs.webkit.org/show_bug.cgi?id=252739
- Introduction blog: https://web.dev/priority-hints/
fix NEXT-319 ([link](https://linear.app/vercel/issue/NEXT-319))
