networkmanager: 1.20.2 -> 1.20.4

* fix-paths.patch
We had to add a diff to revert [0] as it makes it use the python
from meson which won't be the specific pythonForDocs that
has pygobject (breaking the build). Unfortunate that upstream
made assumptions like "Of course, who needs a way to invoke
the interpreter that works accross different distributions!"

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/blob/1.20.4/NEWS

[0]: https://gitlab.freedesktop.org/NetworkManager/NetworkManager/commit/c162dc00e50431f3db2f560201051c0884ebbb1a