chore: update linter, dependencies, and CI #14

	name: Build and test

	on: [push, pull_request]

	env:
	GOLANGCI_LINT_VERSION: v1.59.1

	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	go-version: [stable, oldstable]

	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-go@v5
	with:
	go-version: ${{ matrix.go-version }}

	- name: Download and check dependencies
	run: \|
	go mod tidy
	git diff --exit-code go.mod
	git diff --exit-code go.sum

	- name: Install golangci-lint ${{ env.GOLANGCI_LINT_VERSION }}
	run: curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh \| sh -s -- -b $(go env GOPATH)/bin ${GOLANGCI_LINT_VERSION}

	- name: Install golangci-lint
	run: make validate

	- name: Run tests
	run: make test

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