Build test failures in GitHub CI workflow

[justinmayer]

It seems that GitHub CI suddenly started reporting that the build workflow job is failing:

➡️ https://github.com/getpelican/pelican/actions/runs/10884761305/job/30200770169

Only moments before, this job passed without problems. The only subsequent change was me pushing a RELEASE.md file in order to publish a new Pelican release.

@lioman: As the author of this CI job, could you take a look and shed some light on what might be happening here?

[lioman]

Will have a look

[lioman]

@justinmayer made a quick fix. Perhaps one could solve that differently by pulling the version from pyproject.toml. To unblock the build I thought the quicker version is the best approach now.

[lioman]

And I made that alternative approach here: #3396

So both should fix those issues.