Update node-red_setup.sh

setup/node-red_setup.sh

@@ -29,6 +29,8 @@ apt-get -y purge openssh-{client,server} >/dev/null
 apt-get autoremove >/dev/null
 
 msg "Updating container OS..."
+apt update &>/dev/null
+apt-get -qqy upgrade &>/dev/null
 
 msg "Installing prerequisites..."
 apt-get -qqy install \