package/bubblewrap: bump to version 0.7.0
This version contains a few minor fixes, provides better error messages,
and includes a new option to set the size of created tmpfs volumes.
Release notes:
https://github.com/containers/bubblewrap/releases/tag/v0.7.0
Signed-off-by: Adrian Perez de Castro <aperez@igalia.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>