Tags: security

Hello,

This patch series mainly fixes the latest CVEs found in libextractor,
but it also upgrades other gnunet related packages to their latest
version.

Please also note that the versioning scheme for guile-gnunet is changed
to use that of 'git-version'. Unfortunately, this would break
"guix package --upgrade". But I think this change needs to be made at
some point anyway, so we may as well do it now.

Cheers,
Alex