[procps-ng] Sourceforce page should no longer be used

[james-stocks]

https://github.com/habitat-sh/core-plans/blob/master/procps-ng/plan.sh has pkg_source="https://downloads.sourceforge.net/project/${pkg_name}/Production/${pkg_name}-${pkg_version}.tar.xz"

https://sourceforge.net/projects/procps-ng/files/ notes that "he project has moved completely to GitLab, please visit the Procps GitLab page for newer downloads."

It looks like we should not use the Sourceforge page at all. However Gitlab does not seem to have full releases, only tags. When you grab a tar file e.g. https://gitlab.com/procps-ng/procps/-/archive/v3.3.15/procps-v3.3.15.tar.gz it does not contain a .configure and we'd need to handle the autoconf to create this. Possibly we shouldn't do this and we should ask that project for full releases?

[james-stocks]

Releases are here but seem to point to same source tar.gz's as the tags page.