update: tame androguard debug logs when --verbose is set

fdroidserver/update.py

@@ -2200,6 +2200,7 @@ def main():
 
     config = common.read_config(options)
 
+    common.use_androguard()
     if not (('jarsigner' in config or 'apksigner' in config)
             and 'keytool' in config):
         raise FDroidException(_('Java JDK not found! Install in standard location or set java_paths!'))