fix: Adjust links to XSD files

Author: mitelg

Resources/menu.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <menu xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-      xsi:noNamespaceSchemaLocation="https://raw.githubusercontent.com/shopware/shopware/5.2/engine/Shopware/Components/Plugin/schema/menu.xsd">
+      xsi:noNamespaceSchemaLocation="https://raw.githubusercontent.com/shopware5/shopware/5.2/engine/Shopware/Components/Plugin/schema/menu.xsd">
     <entries>
         <entry>
             <name>PayPal</name>

plugin.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <plugin xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-        xsi:noNamespaceSchemaLocation="https://raw.githubusercontent.com/shopware/shopware/5.2/engine/Shopware/Components/Plugin/schema/plugin.xsd">
+        xsi:noNamespaceSchemaLocation="https://raw.githubusercontent.com/shopware5/shopware/5.2/engine/Shopware/Components/Plugin/schema/plugin.xsd">
 
     <label lang="de">PayPal</label>
     <label lang="en">PayPal</label>