Run all CI tasks through Poe the Poet or Pixi

[redeboer]

With Poe the Poet executor options, it is possible to quickly run CI tasks locally in isolated environments, optionally with specific Python versions. This makes it possible to keep the CI job definitions "synced" with GitHub CI by simply running poe some-task on GitHub. Currently, this is partially done but poe is called through a uv run call with the specific dependencies listed there.

actions/.github/workflows/docnb.yml

Lines 56 to 59 in cdc8531

	uv run \
	--group doc \
	--with poethepoet \
	poe doc