readthedocs build fails with setuptools > v80.6.0

Our readthedocs build started failing when setuptools 80.7.0 came out. It works with 80.6.0, but fails (with slightly different error messages) with newer versions. Builds can be seen here: https://app.readthedocs.org/projects/gwcelery/

I've confirmed locally that even the previous build that worked fails now with these newer version of setuptools.