14.3: late-breaking bug 287482, ZFS raw VM image

The file FreeBSD-14.3-RELEASE-amd64-zfs.raw.xz has been removed from
https://download.freebsd.org/releases/VM-IMAGES/14.3-RELEASE/amd64/Latest/
as it triggers a kernel panic in ZFS code. It is still available on
archive.freebsd.org in case anyone wants a test case (e.g. to fix the
kernel panic).

PR: 287482
Co-authored-by: cperciva