Fix outdated dependencies

Author: Arjen Miedema

composer.json

@@ -4,8 +4,8 @@
     "require": {
         "php": "^7.0|^7.1|^7.2|^8.1",
         "magento/magento2-base": "^2.2|^2.3",
-        "msp/module-notifier": "^0.1",
-        "msp/module-notifier-admin-push-adapter-api": "^0.1",
+        "msp/module-notifier": "^0",
+        "msp/module-notifier-admin-push-adapter-api": "^0",
         "igorw/event-source": "^1.0"
     },
     "support": {