update rsmp gem to 0.20.1, which uses async 2 #804

	# This workflow uses actions that are not certified by GitHub.
	# They are provided by a third-party and are governed by
	# separate terms of service, privacy policy, and support
	# documentation.
	# This workflow will run rspec

	name: Gem supervisor
	on: push
	jobs:
	test:
	timeout-minutes: 10
	strategy:
	fail-fast: false
	matrix:
	os: [ubuntu-latest, macos-latest, windows-latest]
	runs-on: ${{ matrix.os }}
	steps:
	- name: Checkout repo
	uses: actions/checkout@v3

	- name: Install Ruby and gems
	uses: ruby/setup-ruby@v1
	with:
	# ruby-version is not needed because we have a .ruby-version file
	bundler-cache: true # runs 'bundle install' and caches installed gems automatically

	- name: Start supervisor in background
	shell: bash
	run: bundle exec rsmp supervisor --config config/simulator/supervisor.yaml 2>&1 > simulator.log &

	- name: Run tests
	shell: bash
	run: bundle exec rspec --format Validator::Brief --format Validator::Details --out log/validation.log spec/supervisor
	env:
	SUPERVISOR_CONFIG: config/gem_supervisor.yaml

	- name: Show detailed log
	if: always()
	run: cat log/validation.log

	- name: Rename validation.log
	if: always()
	run: mv log/validation.log log/validation_ruby_$(date +%F_%H-%M-%S).log

	- name: Upload validation.log
	if: always()
	uses: actions/upload-artifact@v3
	with:
	name: rspec validation
	path: log/validation_ruby_*.log

	- name: Upload simulator.log
	if: always()
	uses: actions/upload-artifact@v3
	with:
	name: simulator log
	path: simulator.log

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