Rather than suggest using dko for provider files, we should be
suggesting autoconfig.k.o, which is a more capable service.
This is hopefully going to help in alleviating the overload on
the download.kde.org service, which does not handle the load as
well as autoconfig.kde.org does (and can't be fixed due to legacy).
See also https://marc.info/?l=kde-core-devel&m=158037601132219&w=2
for further details on the situation.