Use correct URL to OStree repo for LXC

Fix the path to unified OStree repository.

Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
Reviewed-by: Emanuele Aina <emanuele.aina@collabora.co.uk>
Reviewed-by: Martyn Welch <martyn.welch@collabora.co.uk>
Differential Revision: https://phabricator.apertis.org/D7554

Jenkinsfile

@@ -190,7 +190,7 @@ def buildContainer(architecture, type, board, debosarguments = "", production =
            -t architecture:${architecture} \
            -t type:$type \
            -t suite:$release \
-           -t repourl:https://images.apertis.org/ostree/${architecture}-${board}-${type} \
+           -t repourl:https://images.apertis.org/ostree/repo \
            -t osname:apertis \
            -t branch:apertis/$release/${architecture}-${board}/${type} \
            -t ospack:lxc-ostree-${release}-${architecture}-${type}_${PIPELINE_VERSION}.tar.gz \