Don't use deprecated python version config for readthedocs

DanielNoord · DanielNoord · commit ac036e45ff2d · 2022-04-13T12:35:14.000+02:00
diff --git a/.readthedocs.yaml b/.readthedocs.yaml
@@ -7,6 +7,10 @@ sphinx:
   configuration: doc/conf.py
 
 python:
-  version: 3.8
   install:
     - requirements: doc/requirements.txt
+
+build:
+  os: ubuntu-20.04
+  tools:
+    python: "3.8"
