config/chroot_local-includes: Move /lib to /usr/lib and /sbin to /usr/sbin
In Debian Bullseye (and Tails 6), /lib is a symlink to /usr/lib and /sbin to /usr/sbin.
Using directories in place of those symlinks in config/chroot_local-includes broke the Unsafe Browser when the early_patch option was used without umount.
Closes #20395 (closed)