Serve packages.nasqueron.org from WindRiver

Summary:
[ Server ]

Site was initially assigned to Alkane PaaS, but it's easiest to manage it
from WindRiver, as that's the server where we built FreeBSD packages.

[ Content ]

The FreeBSD repository has been recreated through the freebsd-repo role.

Configuration as code for RHEL packages doesn't currently exist,
while RHEL 7 content is oudated, all the servers are on 8+.
Serve a 503 while we investigate how to best prepare RHEL 8 packages repo.

Ref T1850

Test Plan:

• Browse https://packages.nasqueron.org/freebsd, get 200 and list of packages
• Browse https://packages.nasqueron.org/redhat, get 503

Reviewers: DorianWinty

Reviewed By: DorianWinty

Maniphest Tasks: T1850

Differential Revision: https://devcentral.nasqueron.org/D3497