fix non https url in composer.json

composer.json

@@ -16,7 +16,7 @@
     {
         "name": "D3 Data Development (Inh. Thomas Dartsch)",
         "email": "info@shopmodule.com",
-        "homepage": "http://www.d3data.de",
+        "homepage": "https://www.d3data.de",
         "role": "Owner"
     }
   ],