make available in PHP 7.3 and 7.4

composer.json

@@ -33,10 +33,10 @@
     }
   },
   "require": {
-    "php": "7.1 - 7.2",
+    "php": "7.1 - 7.4",
     "ext-ionCube-Loader": "*",
     "oxid-esales/oxideshop-metapackage-ce": "~6.0.1 || ~6.1.0",
-    "d3/modcfg": ">=5.1.0.0"
+    "d3/modcfg": "^5.1"
   },
   "autoload": {
     "psr-4": {