MarsSeed [1] filed a deletion request for virtualbox6-bin [2]: Unmaintained package. And VirtualBox 6.x does not support Linux kernel 6.7 and newer. There is no linux6.6 in Arch or AUR repos.
[1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/virtualbox6-bin/
