Update actions workflows to use ubuntu-22.04 #548

	name: Unit tests

	on:
	pull_request:
	types: [opened, reopened, edited, synchronize]
	paths:
	- .github/workflows/unit.yaml
	- bolt.gemspec
	- Gemfile
	- Puppetfile
	- bolt-modules/**
	- lib/bolt/**
	- libexec/**
	- rakelib/tests.rake
	- spec/**

	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

	jobs:

	unit:
	name: Unit
	strategy:
	matrix:
	os: [ubuntu-22.04, windows-latest]
	ruby: [3.1]
	runs-on: ${{ matrix.os }}
	steps:
	- name: Checkout repository
	uses: actions/checkout@v2
	- name: Setup Ruby
	uses: ruby/setup-ruby@v1
	with:
	ruby-version: ${{ matrix.ruby }}
	bundler-cache: true
	- name: Update gems
	run: bundle update
	- name: Cache modules
	id: modules
	uses: actions/cache@v1
	with:
	path: modules
	key: ${{ runner.os }}-modules-${{ hashFiles('**/Puppetfile') }}
	- name: Install modules
	if: steps.modules.outputs.cache-hit != 'true'
	run: bundle exec r10k puppetfile install
	- name: Unit tests
	run: bundle exec rake tests:unit

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