chore: mark support for shopware 6.7.0

Author: tinect

.github/workflows/test.yml

@@ -29,7 +29,7 @@ jobs:
           allowEol: false
           justMinMaxShopware: false
           allowShopwareNext: true
-          allowShopwareRC: false
+          allowShopwareRC: true
 
   Test:
     env:

composer.json

@@ -20,8 +20,9 @@
             "homepage": "https://friendsofshopware.de"
         }
     ],
+    "minimum-stability": "RC",
     "require": {
-        "shopware/core": "~6.6.0",
+        "shopware/core": "~6.6.0||~6.7.0",
         "nikic/php-parser": "^4.13.0|^5.0.0"
     },
     "suggest": {