fix: [vps] prevent display of warning messages if ``-s`` silent mode is on.

bin/vps

@@ -1681,14 +1681,15 @@ cmdline.spec::cmd:check-fix:run() {
         fi
     done
     if [ -z "$found" ]; then
+        if [ -z "$opt_silent" ]; then
             if [ "${#SERVICES[@]}" -gt 0 ]; then
                 warn "No container for given services found in current project '$project_name'."
             else
                 warn "No container found for current project '$project_name'."
             fi
+        fi
         return 1
     fi
-
 }