Simplify adding annotations to the manifest

[rjaegers]

Per #201 annotations have been added to the manifest/index file. The way this is done is rather cumbersome at the moment. When docker/build-push-action#958 is solved by means of docker/build-push-action#992, together with docker/metadata-action#351, we can simplify this:

amp-devcontainer/.github/workflows/build-push.yml

Lines 58 to 70 in 1afec52

	- uses: docker/build-push-action@0565240e2d4ab88bba5387d719585280857ece09 # v5.0.0
	id: build-and-push
	with:
	file: .devcontainer/Dockerfile
	platforms: linux/amd64,linux/arm64
	push: ${{ github.event_name != 'merge_group' }}
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}
	outputs: type=image,${{ steps.annotations.outputs.annotations }}
	sbom: true
	provenance: true
	cache-from: type=gha
	cache-to: type=gha,mode=max

to:

- uses: docker/build-push-action@0565240e2d4ab88bba5387d719585280857ece09 # v5.0.0
  id: build-and-push
  with:
    file: .devcontainer/Dockerfile
    platforms: linux/amd64,linux/arm64
    push: ${{ github.event_name != 'merge_group' }}
    tags: ${{ steps.meta.outputs.tags }}
    labels: ${{ steps.meta.outputs.labels }}
    annotations: ${{ steps.meta.outputs.labels }}
    sbom: true
    provenance: true
    cache-from: type=gha
    cache-to: type=gha,mode=max

And remove this:

amp-devcontainer/.github/workflows/build-push.yml

Lines 45 to 49 in 1afec52

	- run: |
	set -Eeuo pipefail
	ANNOTATIONS=$(echo '${{ steps.meta.outputs.labels }}' | sed 's/org.opencontainers.image./annotation-index.org.opencontainers.image./' | tr '\n' ',')
	echo "annotations=${ANNOTATIONS::-1}" >> "$GITHUB_OUTPUT"
	id: annotations

[github-actions]

Thank you for adding your first issue. We will be looking into it as soon as possible.

[rjaegers]

Closed by #225