switch from setuptools to hatch and switch Github Actions to conda #434

	# GitHub Actions workflow for testing and continuous integration.
	#
	# This file performs testing using tox and tox.ini to define and configure the test environments.

	name: CI Tests

	on:
	push:
	branches:
	- main # GitHub now defaults to 'main' as the name of the primary branch. Change this as needed.
	# tags: # run CI if specific tags are pushed
	pull_request:
	# branches: # only build on PRs against 'main' if you need to further limit when CI is run.
	# - main

	jobs:
	# Github Actions supports ubuntu, windows, and macos virtual environments:
	# https://help.github.com/en/actions/reference/virtual-environments-for-github-hosted-runners
	ci_tests:
	name: ${{ matrix.name }}
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	include:

	- name: Python 3.9
	os: ubuntu-22.04
	python: 3.9

	- name: Python 3.11
	os: ubuntu-22.04
	python: 3.12

	steps:
	- name: Checkout code
	uses: actions/checkout@v4
	with:
	fetch-depth: 0
	- uses: mamba-org/setup-micromamba@v1
	with:
	environment-name: test-env
	create-args: >-
	python=${{ matrix.python }}
	netcdf4
	init-shell: >-
	bash
	cache-environment: true
	post-cleanup: 'all'
	- name: Install package
	run: pip install .[test]
	shell: bash -el {0}
	- name: Run Pytest
	run: \|
	pytest -v
	shell: bash -el {0}

	# - name: MPI test
	# run: \|
	# mpirun -np 2 --oversubscribe .tox/${{ matrix.toxenv}}/bin/python -m pytest pysm3/tests/test_read_map_mpi.py;

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