make installable in OXID 6.5.x

composer.json

@@ -26,7 +26,7 @@
   ],
   "require": {
     "php": ">=7.3",
-    "oxid-esales/oxideshop-ce": "6.8 - 6.13",
+    "oxid-esales/oxideshop-ce": "^6.14",
     "maximebf/debugbar": "^1.18",
     "ajgl/composer-symlinker": "^0.3.1",
     "cweagans/composer-patches": "^1.7.2"