legal import: Scan openSUSE projects more often

So we see the legal queue in a realistic state after checkin rounds.
Once the review is accepted, the legaldb state will be obsolete. But
if we see the same sources in openSUSE:Factory, we want to reopen it.
Doing this only once at noon is a little misleading

gocd/checkers.opensuse.gocd.yaml

@@ -68,7 +68,7 @@ pipelines:
     group: openSUSE.Checkers
     lock_behavior: unlockWhenFinished
     timer:
-      spec: 0 0 12 ? * *
+      spec: 0 0 */3 ? * *
     environment_variables:
       OSC_CONFIG: /home/go/config/oscrc-legal-auto
     materials: