Bug 33629: allow pbuilder to use network via build-git-snapshot

Bug 33629: allow pbuilder to use network via build-git-snapshot

to test...

- build master packages, observe failure :(

   debian/build-git-snapshot -d -v 22.12.00-24~git1 -D dev -b base_22.12.00+deb10 --noautoversion
     "/usr/bin/perl" build-resources.PL
    yarn install v1.22.19
    warning You don't appear to have an internet connection. Try the --offline flag to use the  cache for registry queries.

- apply patch

- build master packages, observe success :)

Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>