fix readthedocs

Author: RonnyPfannschmidt

.readthedocs.yaml

@@ -1,16 +1,15 @@
 version: 2
-build:
-  os: ubuntu-22.04
-  tools:
-    python: "3.11"
 
 mkdocs:
   configuration: mkdocs.yml
 
-# Optionally declare the Python requirements required to build your docs
-python:
-  install:
-  - method: pip
-    path: .
-    extra_requirements:
-     - docs
+
+build:
+  os: ubuntu-24.04
+  tools:
+    python: "3.13"
+  jobs:
+    install:
+      - pip install -U pip  # Official recommended way
+      - pip install .
+      - pip install --group docs