community/py3-dulwich: upgrade to 0.20.45
https://github.com/jelmer/dulwich/compare/upstream/0.20.44...dulwich-0.20.45
* Add basic ``dulwich.porcelain.submodule_list`` and ``dulwich.porcelain.submodule_add`` ```
https://github.com/jelmer/dulwich/compare/upstream/0.20.44...dulwich-0.20.45
* Add basic ``dulwich.porcelain.submodule_list`` and ``dulwich.porcelain.submodule_add`` ```