Merge branch 'pr/dnf5' into 'main'

tier-0: pull in dnf5, not dnf

See merge request fedora/bootc/base-images!45

tier-0/manifest.yaml

@@ -58,7 +58,7 @@ include:
 
 packages:
   # needed for building derived container images
-  - dnf
+  - dnf5
   # Even in tier-0, we have this.  If you don't want SELinux today, you'll need
   # to build a custom image.
   - selinux-policy-targeted