Allow newer PHP versions

Author: loevgaard

composer.json

@@ -4,7 +4,7 @@
     "description": "Add barcodes to your products using this plugin",
     "license": "MIT",
     "require": {
-        "php": "^7.3",
+        "php": ">=7.3",
         "setono/doctrine-orm-batcher-bundle": "^0.3.1",
         "sylius/sylius": "^1.3",
         "symfony/event-dispatcher": "^4.4 || ^5.0",