fix: change nzbget::manage_group to boolean

modules/nzbget/manifests/params.pp

@@ -5,7 +5,7 @@ class nzbget::params (
   ],
   String                    $user            = 'nzbget',
   String                    $group           = 'nzbget',
-  String                    $manage_group    = true,
+  Boolean                   $manage_group    = true,
   Stdlib::Host              $bind_address    = '127.0.0.1',
   Stdlib::Port              $port            = 6789,
 ) { }