.readthedocs.yml: fix for poetry

Author: csernazs

.readthedocs.yml

@@ -8,13 +8,13 @@ build:
   os: ubuntu-22.04
   tools:
     python: "3.11"
+  jobs:
+    post_create_environment:
+      - pip install poetry
+      - poetry config virtualenvs.create false
+
+    post_install:
+      - poetry install --with doc
 
 sphinx:
    configuration: doc/conf.py
-
-python:
-   install:
-    - method: pip
-      path: .
-      extra_requirements:
-        - doc