Fix repo migration cache busting, was using the wrong union member (#… #273

	name: container-beemo-ghcr
	on:
	push:
	branches:
	- main
	env:
	REGISTRY: ghcr.io
	# github.repository as <account>/<repo>
	IMAGE_NAME: ${{ github.repository }}

	jobs:
	container-beemo-ghcr:
	if: github.repository == 'bluesky-social/indigo'
	runs-on: ubuntu-latest
	permissions:
	contents: read
	packages: write
	id-token: write

	steps:
	- name: Checkout repository
	uses: actions/checkout@v3

	- name: Setup Docker buildx
	uses: docker/setup-buildx-action@v1

	- name: Log into registry ${{ env.REGISTRY }}
	uses: docker/login-action@v2
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Extract Docker metadata
	id: meta
	uses: docker/metadata-action@v4
	with:
	images: \|
	${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
	tags: \|
	type=sha,enable=true,priority=100,prefix=beemo:,suffix=,format=long

	- name: Build and push Docker image
	id: build-and-push
	uses: docker/build-push-action@v4
	with:
	context: .
	file: ./cmd/beemo/Dockerfile
	push: ${{ github.event_name != 'pull_request' }}
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}
	cache-from: type=gha
	cache-to: type=gha,mode=max

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