Add Dependabot and CI integration. #4

	name: lint

	on:
	push:
	branches: [ master ]
	paths:
	- '.github/workflows/lint.yml'
	- '.golangci.yml'
	- '**.go'
	- 'go.*'
	pull_request:
	branches: [ master ]
	paths:
	- '.github/workflows/lint.yml'
	- '.golangci.yml'
	- '**.go'
	- 'go.*'

	permissions:
	contents: read

	jobs:
	lint:
	name: golang
	runs-on: ubuntu-24.04
	continue-on-error: true
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-go@v5
	with:
	go-version: "1.21"

	- name: Install dependencies
	run: \|
	sudo apt-get -y update
	sudo apt-get -y install libheif-dev

	- name: lint
	uses: golangci/[email protected]
	with:
	version: latest
	args: --timeout=2m0s
	skip-cache: true

	dependencies:
	name: dependencies
	runs-on: ubuntu-latest
	continue-on-error: true
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-go@v5
	with:
	go-version: "stable"

	- name: Check minimum supported version of Go
	run: \|
	go mod tidy -go=1.21 -compat=1.21

	- name: Check go.mod / go.sum
	run: \|
	git add go.*
	git diff --cached --exit-code go.*

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