Fixed error in generate-feed command execution

Author: OStefan2001

composer.json

@@ -71,7 +71,7 @@
         ],
         "post-update-cmd": [
             "php bin/composer-post-install-script.php",
-            "php bin/generate-feed"
+            "php bin/generate-feed.php"
         ],
         "development-disable": "laminas-development-mode disable",
         "development-enable": "laminas-development-mode enable",