readthedocs: update to Python 3.11

The latest Sphinx versions require at least 3.9.

readthedocs: update to Python 3.11
82a99f96 · Matthias Schiffer · dba38f3e · 82a99f96
Unverified Commit 82a99f96 authored 1 year ago by Matthias Schiffer
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -17,4 +17,4 @@ python:
 build:
    os: ubuntu-22.04
    tools:
-        python: "3.8"
+        python: "3.11"