chore(ci): print versions in check_successful_update (#18853)

.github/scripts/check-updater.sh

@@ -9,6 +9,7 @@ check_successful_update() {
   (
     netdata_version=$(netdata -v | awk '{print $2}')
     updater_version=$(cat packaging/version)
+    echo "Version: netdata '$netdata_version', updater '$updater_version'"
     if [ "$netdata_version" = "$updater_version" ]; then
       echo "Update successful!"
     else