Add an extra newline on each loop iteration

It makes it easier on the eyes when reading logs.

task/oci-copy/0.1/oci-copy.yaml

@@ -135,6 +135,7 @@ spec:
                 --media-type application/vnd.oci.empty.v1+json --size 2 -
 
         for varfile in /var/workdir/vars/*; do
+          echo
           echo "Reading $varfile"
           source $varfile