🔧 Update rtd conf

Author: veit

.readthedocs.yaml

@@ -1,23 +1,26 @@
-# .readthedocs.yml
+# .readthedocs.yaml
 # Read the Docs configuration file
 # See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
 
 # Required
 version: 2
 
+# Set the version of Python and other tools you might need
+build:
+  os: ubuntu-22.04
+  tools:
+    python: "3.11"
+
 # Build documentation in the docs/ directory with Sphinx
 sphinx:
   configuration: docs/conf.py
 
-# Build PDF & ePub
+# If using Sphinx, optionally build your docs in additional formats such as PDF
 formats:
-    - epub
-    - pdf
+  - epub
+  - pdf
 
+# Optionally declare the Python requirements required to build your docs
 python:
-  version: 3.8
   install:
-    - requirements: requirements.txt
-
-build:
-  image: latest
+  - requirements: requirements.txt