chore: catch up code state from statsmodels PR #1110

	name: pr-validation

	# Controls when the workflow will run
	on:
	push:
	branches:
	- '**'
	pull_request:
	schedule:
	# Run every week day at 3h30 UTC
	- cron: '30 3 * * 1,2,3,4,5'

	# A workflow run is made up of one or more jobs that can run sequentially or in parallel
	jobs:
	run_tests:
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	include:
	- os: ubuntu-latest
	python: "3.9"
	- os: ubuntu-latest
	python: "3.10"
	- os: ubuntu-latest
	python: "3.10"
	pip-flags: "--pre"
	- os: ubuntu-latest
	python: "3.11"
	- os: ubuntu-latest
	python: "3.11"
	pip-flags: "--pre"
	steps:
	- uses: actions/checkout@v3
	- uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -e ."[dev]"
	pip install -r docs/requirements.txt
	- name: Test with pytest
	run: \|
	coverage run -m pytest
	- name: Generate code coverage report
	run: \|
	coverage html
	- name: Upload coverage artifacts
	uses: actions/upload-artifact@v3
	with:
	name: test-coverage-report
	path: htmlcov/
	retention-days: 20
	- name: Compile docs
	run: \|
	cd docs
	make clean html

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