do not generate not immediate conversions through command

Author: QuentinGab

src/Commands/GenerateMediaConversionsCommand.php

@@ -54,6 +54,10 @@ public function handle(): int
                     queued: true,
                     filter: function ($definition) use ($media, $force, $conversions) {
 
+                        if (! $definition->immediate) {
+                            return false;
+                        }
+
                         if (
                             ! empty($conversions) &&
                             ! in_array($definition->name, $conversions)