ci: add build, lint and release workflows #4

	name: Build

	on:
	pull_request: {}
	push:
	tags:
	- v*

	jobs:
	prepare-release:
	name: Prepare release
	runs-on: ubuntu-latest
	steps:
	- if: github.event_name == 'push'
	run: \|-
	gh release create "${{ github.ref_name }}" --target "${{ github.sha }}"

	build:
	name: Build
	runs-on: ubuntu-latest
	needs: [ prepare-release ]
	strategy:
	matrix:
	goos: [ linux ]
	goarch: [ amd64, arm64 ]
	steps:
	- uses: actions/checkout@v4
	- name: Extract k6 version from go.mod
	id: version
	run: \|-
	k6version=$(grep -e go.k6.io go.mod \| cut -d' ' -f 2)
	echo "Detected k6 version: ${k6version}"
	echo "k6=${k6version}" >> $GITHUB_OUTPUT
	- name: Build with xk6
	run: \|-
	docker run --rm -i -u "$(id -u):$(id -g)" -v "${PWD}:/xk6" \
	-e "GOOS=${{ matrix.goos }}" -e "GOARCH=${{ matrix.goarch }}" \
	grafana/xk6 build ${{ steps.version.outputs.k6 }} \
	--output "dist/sm-k6-${{ matrix.goos }}-${{ matrix.goarch }}" \
	--with sm=.
	- name: Upload artifact to release
	if: github.event_name == 'push'
	run: \|-
	gh release upload "${{ github.ref_name }}" dist/*

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