Update carddav url towards nextcloud

setup/webmail.sh

@@ -145,7 +145,7 @@ cat > ${RCM_PLUGIN_DIR}/carddav/config.inc.php <<EOF;
 	 'name'         =>  'ownCloud',
 	 'username'     =>  '%u', // login username
 	 'password'     =>  '%p', // login password
-	 'url'          =>  'https://${PRIMARY_HOSTNAME}/cloud/remote.php/carddav/addressbooks/%u/contacts',
+	 'url'          =>  'https://${PRIMARY_HOSTNAME}/cloud/remote.php/dav/addressbooks/users/%u/contacts',
 	 'active'       =>  true,
 	 'readonly'     =>  false,
 	 'refresh_time' => '02:00:00',