Jenkinsfile: run arp builds weekly
Jenkinsfile: run arp builds weekly

Add check so arp builds are run weekly and qemu builds are run nightly

Signed-off-by: Therese Nordqvist <2d0f96d8a993fd0656366c2e00899126ff42525a@pelagicore.com>

sashko/pelux-manifests,Pelagicore/pelux-manifests