Fix github actions release flow #2

	name: release
	on:
	push:
	tags:
	- 'v*'
	jobs:
	image:
	name: Push container image
	runs-on: ubuntu-22.04
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-go@v4
	with:
	go-version-file: 'go.mod'
	- name: Set up QEMU
	uses: docker/setup-qemu-action@v3
	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v3
	- name: Login to Docker Hub
	uses: docker/login-action@v3
	with:
	registry: ghcr.io
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}
	- name: Set Tag
	id: set-tag
	run: echo "RELEASE_TAG=${GITHUB_REF#refs/tags/v}" >> $GITHUB_OUTPUT # Remove "v" prefix.
	- name: Build and push
	uses: docker/build-push-action@v5
	with:
	push: true
	tags: ghcr.io/cybozu-go/neco-bpftools:${{ steps.set-tag.outputs.RELEASE_TAG }}
	release:
	name: Release on GitHub
	needs: image
	runs-on: ubuntu-22.04
	steps:
	- uses: actions/checkout@v4
	- name: Create release
	id: create_release
	uses: actions/create-release@v1
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	with:
	tag_name: ${{ github.ref }}
	release_name: Release ${{ github.ref }}
	body: \|
	See [CHANGELOG.md](./CHANGELOG.md) for details.
	draft: false
	prerelease: ${{ contains(github.ref, '-') }}

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