package/bubblewrap: bump to version 0.8.0
This version allows disabling usage of nested user namespaces and
improves error messages. Release notes:
https://github.com/containers/bubblewrap/releases/tag/v0.8.0
Signed-off-by: Adrian Perez de Castro <aperez@igalia.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>