[all] (poetry) Use a single poetry environment

README.md

common/README.md

common/doc/add_venv_2.png

doc/add_common_to_source_root.png

doc/add_venv_1.png

doc/add_venv_2.png

drone-at-base/poetry.lock

drone-at-base/pyproject.toml

poetry.lock

pyproject.toml

resources/scripts/update-all-dependencies.sh

robots-at-robots/poetry.lock

robots-at-robots/pyproject.toml

robots-at-runes/poetry.lock

robots-at-runes/pyproject.toml