Dockerfile: update to Fedora 39 #1053

	# Maintained in https://github.com/coreos/repo-templates
	# Do not edit downstream.

	name: Go
	on:
	push:
	branches: [main]
	pull_request:
	branches: [main]
	permissions:
	contents: read

	# don't waste job slots on superseded code
	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	jobs:
	test:
	name: Test
	strategy:
	matrix:
	go-version: [1.20.x, 1.21.x]
	os: [ubuntu-latest]
	include:
	- go-version: 1.21.x
	os: macos-latest
	- go-version: 1.21.x
	os: windows-latest
	runs-on: ${{ matrix.os }}
	steps:
	- name: Set up Go 1.x
	uses: actions/setup-go@v4
	with:
	go-version: ${{ matrix.go-version }}
	- name: Check out repository
	uses: actions/checkout@v3
	- name: Install macOS dependencies
	if: runner.os == 'macOS'
	shell: bash
	run: brew install coreutils
	- name: Check modules
	run: go mod verify
	- name: Test
	shell: bash
	run: ./test
	- name: Run linter
	uses: golangci/golangci-lint-action@v3
	if: runner.os == 'Linux'
	with:
	version: v1.55.1
	args: -E=gofmt --timeout=30m0s
	regenerate:
	name: Regenerate
	runs-on: ubuntu-latest
	steps:
	- name: Check out repository
	uses: actions/checkout@v3
	- name: Set up Go 1.x
	uses: actions/setup-go@v4
	with:
	go-version: 1.21.x
	- name: Regenerate
	run: ./generate
	- name: Check whether generated output is current
	run: \|
	if [ -n "$(git status --porcelain docs)" ]; then
	echo "Found local changes after regenerating:"
	git --no-pager diff --color=always docs
	echo "Rerun './generate'."
	exit 1
	fi

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