Log Message:
py-dulwich: updated to 0.20.45

0.20.45 2022-07-15
* Add basic ``dulwich.porcelain.submodule_list`` and \ 
``dulwich.porcelain.submodule_add``

0.20.44 2022-06-30
* Fix reading of chunks in server.
* Support applying of URL rewriting using ``insteadOf`` / ``pushInsteadOf``.

0.20.43 2022-06-07
* Lazily import url2pathname.
* Drop caching of full HTTP response.

0.20.42 2022-05-24
* Drop ``RefsContainer.watch`` that was always flaky.

0.20.41 2022-05-24
* Fix wheel uploading, properly.