Hi @petercorke - please take a look and let me know what you think. A drawback of this approach is that the list of dependencies needs to be manually kept in sync between the pyproject.toml and the workflow file; but otherwise it should be nice and neat. I've also dropped Python 3.8 - it's nearly end-of-life and not well supported in conda-forge anymore.

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 28.85%. Comparing base (cd25f59) to head (0099af8).
Report is 44 commits behind head on master.

@@            Coverage Diff             @@
##           master      #12      +/-   ##
==========================================
- Coverage   29.54%   28.85%   -0.70%     
==========================================
  Files          34       34              
  Lines        7371     7371              
==========================================
- Hits         2178     2127      -51     
- Misses       5193     5244      +51     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

This works and is now merged. I'm concerned that that this action is now: (i) complex and fragile with respect to dependencies, (ii) doesn't use the toml file which should be the only source of truth, (iii) different to the actions in other projects. All of which gives me a dependency on you for ever :)