do not use a mirror for KDE's Craft binary cache

Signed-off-by: Matthieu Gallien <matthieu.gallien@nextcloud.com>

craftmaster.ini

@@ -30,7 +30,7 @@ ShortPath/EnableJunctions = False
 
 ; Packager/RepositoryUrl = https://files.kde.org/craft/
 Packager/PackageType = NullsoftInstallerPackager
-Packager/RepositoryUrl = http://ftp.acc.umu.se/mirror/kde.org/files/craft/master/
+Packager/RepositoryUrl = https://files.kde.org/craft/master/
 
 ContinuousIntegration/Enabled = True