build.sh: add TEST_RUN for not publishing

automated/build.sh

@@ -158,6 +158,10 @@ docker run -t $ARGS_BUILD $IMAGE nice -n 15 /bin/bash -c "
     exec sudo -E -u $USER env \"HOME=$HOME\" \"PATH=\$PATH\" curator build --jobs $JOBS
     "
 
+if [ -n "$TEST_RUN" ];
+   exit 1
+fi
+
 # Make sure we actually need this snapshot. We used to perform this check
 # exclusively before building. Now we perform it after as well for the case of
 # nightly, where we don't perform this check beforehand. This is also slightly