cockpituous: Disable release-dockerhub
cockpituous: Disable release-dockerhub

This does not currently work any more at least since commit 3e6ab09df9
(replacing release-copr with releasing through packit). But the
automatic builds on quay.io started to fail even before (logs are
removed by now, though). This needs re-thinking, preferably this should
happen in reaction to completing the COPR or Fedora Koji build.

It's also not super urgent: The webserver changes rarely these days,
it's not too big of a burden to do a manual commit if/when there is
something noteworthy to release for the cockpit/ws container.

martinpitt/cockpit,cockpit-project/cockpit,mvollmer/cockpit,martinpitt/cockpit,martinpitt/cockpit,mvollmer/cockpit,cockpit-project/cockpit,cockpit-project/cockpit,martinpitt/cockpit,martinpitt/cockpit,mvollmer/cockpit,mvollmer/cockpit,cockpit-project/cockpit,cockpit-project/cockpit,mvollmer/cockpit