https://packages.debian.org/ includes some HTTP links

Hi,

I do not know where to address this (a pseudo package?) and looking
into webwml does give me any result.

The concern is with some of the links provided here for instance:
https://packages.debian.org/unstable/graphviz

All the URLs under the 'Download Source Package xxxxxx' section (in
'Links for' menu) are explicitly based on the HTTP protocol.
Could it be possible to use a relative URL schema or switch to https:
to avoid warnings in some cases?

Thanks,
Patrice