Test that ccaches are cleaned up during installation
    
    Create a random file and directory in the ccaches directory
    prior to installation then confirm that they were removed.
    
    https://pagure.io/freeipa/issue/8248
    
    Signed-off-by: Rob Crittenden <rcritten@redhat.com>
    Reviewed-By: Christian Heimes <cheimes@redhat.com>