Updates readthedocs.yaml build commands

- Change pip install command to use python -m pip
- Modify poetry install command to set virtual environment path before installing with docs group.

.readthedocs.yaml

@@ -8,13 +8,11 @@ build:
  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
+ - python -m pip install poetry
  post_install:
  # Install dependencies with 'docs' dependency group
  # https://python-poetry.org/docs/managing-dependencies/#dependency-groups
- - poetry install --with docs
+ - VIRTUAL_ENV=$READTHEDOCS_VIRTUALENV_PATH poetry install --with docs
 
 sphinx:
- configuration: docs/conf.py
+ configuration: docs/conf.py