Version in conda metadata wrong

[BenediktBurger]

I'm trying to publish another package on conda-forge (PyLECO, issue: https://github.com/conda-forge/staged-recipes/pull/26052) which depends on your package.

The build pipeline failed as the metadata of your package showed the version "0.0.0.dev0", which is obviously below any reasonable version limit.

Culprit seems to be the following code, as conda-forge does not have the github environment while creating the package:

https://github.com/oittaa/uuid6-python/blob/4f879849178b8a7a564f7cb76c3f7a6e5228d9ed/setup.py#L15-L19