Poetry install failing on github after poetry 1.4.1 release

[dfsp-spirit]

Changes Summary

Test branch to test the CI on github. This branch only contains a minor change to the README and serves to demonstrate that something is wrong with the poetry setup on the GitHub runners.

It also serves to mess around with the GH workflow file to fix the issue, without messing around on dev directly.

This bug could be related to pradyunsg/sphinx-theme-builder/issues/13. See also poetry #7691

UPDATE: I temporarily fixed this by pinning the poetry version to 1.4.0. The bug appeared with the release of poetry 1.4.1 on 2023/03/19. It may be that the real issue is a broken hash (that was not properly validated with poetry 1.4.0, but is now in 1.4.1). So the real culprit may be sphinx-theme-builder (see their issue 39), which introduces the broken hash leading to a _WheelFileValidationError into pydata_sphinx_theme-0.8.1-py3-none-any.whl, which we have as a dependency. See also the issue 1253 of pydata-sphinx-theme.

We will wait for an upstream fix, then remove the poetry version pinning.

Reviewer Checklist

• Are testing routines present?
• Do objects in the global package namespace perform proper parsing of their input?
• Are all docstrings complete and accurate?
• Is the CHANGELOG.md up to date?

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: +0.40 🎉

Comparison is base (d5ea30c) 68.11% compared to head (f7f18d3) 68.51%.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev     #450      +/-   ##
==========================================
+ Coverage   68.11%   68.51%   +0.40%     
==========================================
  Files          82       82              
  Lines        9995     9995              
  Branches     2066     2066              
==========================================
+ Hits         6808     6848      +40     
+ Misses       2642     2612      -30     
+ Partials      545      535      -10     

see 7 files with indirect coverage changes

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[dfsp-spirit]

As discusses, I am merging this now as a temporary fix for our CI.