fix GH actions and pin setuptools version for python 3.6 #149

	# documentation: https://help.github.com/en/articles/workflow-syntax-for-github-actions
	name: Test installation of EESSI test suite with 'pip install'
	on: [push, pull_request, workflow_dispatch]
	permissions: read-all
	jobs:
	test_pip_install:
	runs-on: ubuntu-22.04
	strategy:
	fail-fast: false
	matrix:
	python: ['3.6', '3.7', '3.8', '3.9', '3.10', '3.11']
	setuptools-version: ['39.2.0', '59.6.0', '68.2.2']
	steps:
	- name: Check out software-layer repository
	uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 # v3.1.0
	with:
	persist-credentials: false

	- name: Install setuptools ${{ matrix.setuptools-version }}
	run: pip install setuptools==${{ matrix.setuptools-version }}

	- name: Install ReFrame
	run: \|
	pip install --user ReFrame-HPC

	- name: Install EESSI test suite with 'pip install'
	run: \|
	# install from source distribution tarball, to test release as published on PyPI
	rm -rf dist
	python setup.py sdist
	ls dist

	pip install --user dist/eessi*.tar.gz
	find $HOME/.local

	python -c 'import eessi.testsuite.utils'
	python -c 'import eessi.testsuite.tests.apps'

Provide feedback