fixed rtd build

.readthedocs.yml

@@ -3,17 +3,16 @@ version: 2
 build:
   os: "ubuntu-22.04"
   tools:
-    python: "3.9"
-  jobs:
-    post_create_environment:
-      # Install poetry
-      # https://python-poetry.org/docs/#installing-manually
-      - pip install poetry
-      # Tell poetry to not use a virtual environment
-      - poetry config virtualenvs.create false
-      # Install dependencies with 'docs' dependency group
-      # https://python-poetry.org/docs/managing-dependencies/#dependency-groups
-      - poetry install --with docs
+    python: "3.10"
+
+python:
+  install:
+    - method: pip
+      extra_requirements:
+        - docs
+      path: .
 
 sphinx:
+  builder: html
   configuration: docs/conf.py
+  fail_on_warning: false