feat(mumble): add proper Docker configuration (#47) #6

	name: Build Docker image and push it
	on:
	push:
	branches:
	- 'master'

	env:
	REGISTRY: ghcr.io
	IMAGE_NAME: "tf2pickup-org/${{ github.event.repository.name }}"

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v3
	- name: Login to GitHub Container Registry
	uses: docker/login-action@v2
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}
	- name: Docker meta
	id: docker_meta
	uses: docker/metadata-action@v4
	with:
	images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v2
	- name: Build and push
	uses: docker/build-push-action@v4
	with:
	context: .
	push: true
	tags: \|
	${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
	${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:1.0.0
	labels: ${{ steps.docker_meta.outputs.labels }}

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