deskutils/virt-manager: Fix build with setuptools 61.0.0+

With hat:	python

deskutils/virt-manager/files/patch-setup.py

@@ -32,3 +32,11 @@
  
          'configure': configure,
  
+@@ -547,4 +544,7 @@ setuptools.setup(
+     },
+ 
+     distclass=VMMDistribution,
++
++    # Declare packages explicitly so that setuptools does not attempt auto discovery
++    packages=[],
+ )