support/scripts/pkg-stats: fix flake8 E117 warning

Fixes:

  support/scripts/pkg-stats:146:17: E117 over-indented

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

support/scripts/pkg-stats

@@ -143,7 +143,7 @@ class Package:
             if self.infras[0][1] == 'virtual':
                 return False
         except IndexError:
-                return False
+            return False
         return True
 
     def set_infra(self):