Move to python 3.12 #258

	# Reference:
	# - https://github.com/actions/cache
	# - https://github.com/actions/checkout
	# - https://github.com/actions/download-artifact
	# - https://github.com/actions/upload-artifact
	# - https://github.com/conda-incubator/setup-miniconda

	name: ci-tests

	on:
	pull_request:

	push:
	branches:
	- "master"
	- "v*x"
	- "!auto-update-lockfiles"
	- "!pre-commit-ci-update-config"
	- "!dependabot/*"
	tags:
	- "v*"

	workflow_dispatch:

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	jobs:
	tests:
	name: "tests (py${{ matrix.python-version }} ${{ matrix.os }})"

	runs-on: ubuntu-latest

	defaults:
	run:
	shell: bash -l {0}

	env:
	ENV_NAME: "ci-tests"
	CYTHON_COVERAGE: true
	CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}

	strategy:
	fail-fast: false
	matrix:
	os: ["ubuntu-latest"]
	python-version: ["310", "311", "312"]
	include:
	- python-version: "312"
	cov-report: "--cov-report=xml --cov"
	codecov: "codecov"

	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- name: "mambaforge setup (python ${{ matrix.python-version }})"
	uses: conda-incubator/setup-miniconda@v3
	with:
	miniforge-variant: Mambaforge
	miniforge-version: latest
	channels: conda-forge,defaults
	channel-priority: true
	auto-update-conda: true
	environment-file: "requirements/locks/py${{ matrix.python-version }}-linux-64.lock"
	activate-environment: ${{ env.ENV_NAME }}

	- name: "stratify tests (py${{ matrix.python-version }})"
	run: \|
	python setup.py build_ext --inplace
	python -m pip install --no-deps --editable .
	pytest ${{ matrix.cov-report }}
	${{ matrix.codecov }}

Provide feedback