Apply golangci-lint config and fixes #339

	---
	name: test

	on: ["push", "pull_request"]

	env:
	GO_VERSION: "1.22"
	LINUX_ARCHES: "amd64 386 arm arm64 s390x mips64le ppc64le"

	jobs:
	build:
	name: Build all linux architectures
	runs-on: ubuntu-latest
	steps:
	- name: setup go
	uses: actions/setup-go@v5
	with:
	go-version: ${{ env.GO_VERSION }}
	- uses: actions/checkout@v4

	- name: Build on all supported architectures
	run: \|
	set -e
	for arch in ${LINUX_ARCHES}; do
	echo "Building for arch $arch"
	GOARCH=$arch make
	done

	test-linux:
	name: Run tests on Linux amd64
	runs-on: ubuntu-latest
	steps:
	- name: setup go
	uses: actions/setup-go@v5
	with:
	go-version: ${{ env.GO_VERSION }}
	- uses: actions/checkout@v4

	- name: Install test binaries
	env:
	GO111MODULE: off
	run: \|
	go get github.com/modocache/gover
	go get github.com/mattn/goveralls

	- name: test
	run: PATH=$PATH:$(go env GOPATH)/bin COVERALLS=1 make check

	- name: Send coverage to coveralls
	env:
	COVERALLS_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	run: \|
	PATH=$PATH:$(go env GOPATH)/bin
	gover
	goveralls -coverprofile=gover.coverprofile -service=github

	lint:
	permissions:
	contents: read # for actions/checkout to fetch code
	pull-requests: read # for golangci/golangci-lint-action to fetch PRs
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-go@v5
	- run: make lint

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