Docs CI: pin jupyter-book<2 (v2 is a MyST-MD rewrite, drops _config.yml/Sphinx)

gereonelvers · gereonelvers · commit 70f1ffc9432d · 2026-05-06T00:10:00.000+02:00
diff --git a/docs/requirements.txt b/docs/requirements.txt
@@ -1,4 +1,4 @@
-jupyter-book>=1.0.0
+jupyter-book>=1.0.0,<2
 ipywidgets
 numpy
 pandas
