heptapod-ci: (hopefully) fix the pipeline savings system
There is no easy way for me to test this outside of the actual repo since
it would require setting up `heptapod-runner` locally, making a Git repo
with the right changes, etc. It's not worth my time at this point.
If this fails, I'll try to ask for help from Georges, the maintainer
of Heptapod.
{
"conduit_uri": "https://phab.mercurial-scm.org/api",
"phabricator.uri": "https://phab.mercurial-scm.org/",
"repository.callsign": "HG",
"arc.land.onto.default": "@",
"base": "hg:.^"
}