Bump docker/build-push-action from 4.1.1 to 4.2.1 #412

	name: Docker Build

	on:
	schedule:
	- cron: '59 11 * * *'
	push:
	branches: [ "master" ]
	# Publish semver tags as releases.
	tags: [ 'v..*' ]
	pull_request:
	branches: [ "master" ]

	env:
	REGISTRY: ghcr.io
	IMAGE_NAME: ${{ github.repository }}

	jobs:
	build-and-push-image:
	runs-on: ubuntu-latest
	permissions:
	contents: read
	packages: write

	steps:
	- name: Checkout repository
	uses: actions/checkout@v4

	- name: Log in to the Container registry
	uses: docker/login-action@465a07811f14bebb1938fbed4728c6a1ff8901fc
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Extract metadata (tags, labels) for Docker
	id: meta
	uses: docker/metadata-action@818d4b7b91585d195f67373fd9cb0332e31a7175
	with:
	images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

	- name: Build and push Docker image
	uses: docker/build-push-action@0a97817b6ade9f46837855d676c4cca3a2471fc9
	with:
	context: .
	push: true
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}

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