Add Sphinx 9.1.0

Update Sphinx Python package to the current version pulled in by "pip3
install sphinx_rtd_theme" run in a fresh Debian "trixie" container.

diff --git a/doc/arm/requirements.txt b/doc/arm/requirements.txt
index 8d9d05ffb017ba98cfe8b6c5c699f869a5936eac..811c3d9493e6e387f6e8d95d5a854328053b258c 100644 (file)
--- a/doc/arm/requirements.txt
+++ b/doc/arm/requirements.txt
@@ -1,3 +1,3 @@
-Sphinx==9.0.4
+Sphinx==9.1.0
 docutils==0.22.4
 sphinx_rtd_theme==3.1.0