Migrate make_dfu_header to CLI (#12061)

* Migrate make_dfu_header to CLI

* lint fixes

* Update lib/python/qmk/cli/generate/dfu_header.py

Co-authored-by: Ryan <fauxpark@gmail.com>

* Rename object

Co-authored-by: Ryan <fauxpark@gmail.com>

lib/python/qmk/cli/generate/__init__.py

@@ -1,5 +1,6 @@
 from . import api
 from . import config_h
+from . import dfu_header
 from . import docs
 from . import info_json
 from . import layouts