Use file lock to synchronize concurrent access #46

	name: build

	on:
	- push

	jobs:
	build:
	strategy:
	matrix:
	os: [ubuntu-latest]
	runs-on: ${{ matrix.os }}
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
	services:
	pebble:
	image: letsencrypt/pebble
	ports:
	- 14000:14000
	steps:
	- name: Checkout
	uses: actions/checkout@v3
	with:
	fetch-depth: 0
	- name: Set up Go
	uses: actions/setup-go@v3
	with:
	go-version: '1.21'
	check-latest: true
	- name: Set up Caching
	uses: actions/cache@v3
	with:
	path: \|
	~/.cache/go-build
	~/go
	key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
	restore-keys: \|
	${{ runner.os }}-go-
	- name: Run Build
	run: make check
	- name: Run SonarQube
	uses: sonarsource/sonarcloud-github-action@master

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