CI: use staticcheck-action #13

	on: [push, pull_request]

	name: Go
	jobs:

	test:
	strategy:
	matrix:
	go-version: [1.17.x, 1.20.x, 1.21.x]
	platform: [ubuntu-latest]
	runs-on: ${{ matrix.platform }}
	steps:
	- name: Install libpcap
	run: sudo apt-get install -y --no-install-recommends libpcap*
	- name: Install Go
	uses: actions/setup-go@v2
	with:
	go-version: ${{ matrix.go-version }}

	- name: Checkout code
	uses: actions/checkout@v2

	- name: Ensure gofmt formatting
	if: matrix.platform == 'ubuntu-latest' && startsWith(matrix.go-version, '1.21')
	run: \|
	[ "$(gofmt -l $(find . -name '*.go') 2>&1)" = "" ]

	- name: Download Go dependencies
	env:
	GOPROXY: "https://proxy.golang.org"
	run: go mod download

	- name: Test with -race
	run: go test -race -count=1 ./...

	- name: staticcheck.io
	if: startsWith(matrix.go-version, '1.21')
	uses: dominikh/staticcheck-action@v1.3.0
	with:
	version: "2023.1.6"
	install-go: false
	cache-key: ${{ matrix.go }}

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