[jhbuild] systeminstall: prefer dnf over PackageKit

[Patrick Griffis <pgriffis src gnome org>]

commit 99085970c8343ff93461c94ef7c5e755463c4651
Author: Sebastian Wick <sebastian wick redhat com>
Date:   Tue Feb 1 12:17:58 2022 +0100

    systeminstall: prefer dnf over PackageKit
    
    PackageKit in a toolbox is broken and there is no good reason to keep
    prefering PackageKit over dnf so let's change that.

 jhbuild/utils/systeminstall.py | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
---
diff --git a/jhbuild/utils/systeminstall.py b/jhbuild/utils/systeminstall.py
index edccde33..86c04a95 100644
--- a/jhbuild/utils/systeminstall.py
+++ b/jhbuild/utils/systeminstall.py
@@ -586,8 +586,7 @@ class AptSystemInstall(SystemInstall):
     def detect(cls):
         return cmds.has_command('apt-file')
 
-# Ordered from best to worst. DNF is only last because its newer than PackageKit.
-_classes = [AptSystemInstall, PacmanSystemInstall, PKSystemInstall, DNFSystemInstall]
+_classes = [AptSystemInstall, PacmanSystemInstall, DNFSystemInstall, PKSystemInstall]
 
 if __name__ == '__main__':
     logging.basicConfig(level=logging.INFO)