fix: clean the cached aktualizr repo prior to starting the brewing process
fix: clean the cached aktualizr repo prior to starting the brewing process

Signed-off-by: Mike Sul <c4cf997f44ef6c8bd7ff6dc848cd2f9ad1cc931e@here.com>

advancedtelematic/aktualizr,advancedtelematic/aktualizr,advancedtelematic/aktualizr,advancedtelematic/aktualizr