Add relative timestamp to halftime announcement #80

	name: Release

	on:
	push:
	branches:
	- main

	jobs:
	docker:
	runs-on: ubuntu-latest
	permissions:
	packages: write
	contents: read

	steps:
	- name: Ensure lowercase repository name
	run: echo "REPO_LC=${REPO,,}" >> ${GITHUB_ENV}
	env:
	REPO: ${{ github.repository }}

	- name: Checkout
	uses: actions/checkout@v3

	- name: Set up QEMU
	uses: docker/setup-qemu-action@v2

	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v2

	- name: Login to GitHub Container Registry
	uses: docker/login-action@v2
	with:
	registry: ghcr.io
	username: ${{ github.repository_owner }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Build and push
	uses: docker/build-push-action@v3
	with:
	context: .
	platforms: linux/amd64,linux/arm64,linux/arm/v7
	push: true
	tags: ghcr.io/${{ env.REPO_LC }}:latest
	cache-from: type=gha
	cache-to: type=gha,mode=max

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