Add release workflow (#329) #1611

	name: CI
	on:
	push:
	branches: ['main']
	pull_request:
	branches: ['main']
	workflow_dispatch:
	schedule:
	- cron: '0 0 * * 0' # Weekly “At 00:00”

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

	# Note: This CI used to run off of the image:
	# carbonplan/cmip6-downscaling-single-user:2022.06.19

	jobs:
	test:
	name: ${{ matrix.python-version }}-build
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	python-version: ['3.9', '3.10', '3.11']
	timeout-minutes: 20
	defaults:
	run:
	shell: bash -l {0}
	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Install Conda environment from environment.yml
	uses: mamba-org/setup-micromamba@v1
	with:
	# environment-file is not assumed anymore
	environment-file: ci/environment.yaml
	create-args: >-
	python=${{ matrix.python-version }}
	# now called cache-environment
	cache-environment: true
	post-cleanup: 'none'
	cache-downloads: false

	- name: Install package
	run: \|
	python -m pip install -e .[dev]
	- name: Conda list information
	run: \|
	conda env list
	conda list
	- name: Run tests
	run: \|
	python -m pytest tests

Provide feedback