Use Poetry #345

	name: unit-tests

	on:
	pull_request:
	branches:
	- "*"
	push:
	branches:
	- main

	jobs:
	run:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4

	- name: Retrieve the environment and the River build
	uses: ./.github/actions/install-env
	with:
	python: "3.11"

	- name: Cache River datasets
	uses: actions/cache@v3
	with:
	path: ~/river_data
	key: ${{ runner.os }}

	- name: Cache scikit-learn datasets
	uses: actions/cache@v3
	with:
	path: ~/scikit_learn_data
	key: ${{ runner.os }}

	- name: Download datasets
	run: \|
	source ~/.venv/bin/activate
	python -c "from river import datasets; datasets.CreditCard().download(); datasets.Elec2().download(); datasets.SMSSpam().download()"
	python -c "from river import bandit; bandit.datasets.NewsArticles().download()"

	- name: pytest [Branch]
	if: github.event_name == 'pull_request'
	run: \|
	source ~/.venv/bin/activate
	pytest --durations=10 -n logical # Run pytest on all logical CPU cores

	- name: pytest [Main]
	if: github.event_name == 'push'
	run: \|
	source ~/.venv/bin/activate
	pytest -m "not datasets" --durations=10 -n logical # Run pytest on all logical CPU cores

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