fix: readthedocs build - take 1 (#495)

.readthedocs.yml

@@ -11,6 +11,9 @@ build:
   tools:
     python: "3.10"
 
-python:
-  install:
-    - requirements: requirements/3.10.txt
+  # https://github.com/readthedocs/readthedocs.org/issues/4912#issuecomment-1143587902s
+  jobs:
+    post_install:
+      - pip install poetry==1.7.1  # match version from poetry.lock
+      - poetry config virtualenvs.create false
+      - poetry install --all-extras