coreos-ostree-importer: temporarily change command to sleep infinity

We're currently debugging an issue with the importer. Have it sleep so
it lingers and we can poke around.

roles/openshift-apps/coreos-ostree-importer/templates/deploymentconfig.yml

@@ -20,8 +20,8 @@ spec:
       - name: coreos-ostree-importer
         # sleep infinity is useful for debugging environment issues
         # comment out when not debugging
-        # args: ['infinity']
-        # command: ['/usr/bin/sleep']
+        args: ['infinity']
+        command: ['/usr/bin/sleep']
         volumeMounts:
         - name: fedora-ostree-content-volume
           mountPath: /mnt/koji