Verson number in GitHub release is 0.0.0

[s-t-e-v-e-n-k]

Describe the bug
Downloading the 4.0.4 release from GitHub:

steven@conjecture:/tmp/tmp.d811GMff6W% wget -q https://github.com/ReactiveX/RxPY/archive/refs/tags/v4.0.4.tar.gz
steven@conjecture:/tmp/tmp.d811GMff6W% tar zxf v4.0.4.tar.gz 
steven@conjecture:/tmp/tmp.d811GMff6W% cd RxPY-4.0.4 
steven@conjecture:/tmp/tmp.d811GMff6W/RxPY-4.0.4% grep version pyproject.toml
version = "0.0.0" # NOTE: will be updated by publish script

Expected behavior
I would hope released versions artefacts report the version number correctly.

[limburgher]

I have to work around this in Fedora packaging as well. Using more standardized release/build patterns is generally simpler all over, let me know if you have a corner case you need help with.