github-action: use container image for provenance (#2030)

Author: v1v

.github/workflows/release.yml

@@ -144,10 +144,10 @@ jobs:
  build-args: |
  AGENT_DIR=./build/dist/package/python
 
- - name: Attest image
+ - name: generate build provenance (containers)
  uses: github-early-access/generate-build-provenance@main
  with:
- subject-name: "${{ env.DOCKER_IMAGE_NAME }}:${{ steps.setup-docker.outputs.tag }}"
+ subject-name: "${{ env.DOCKER_IMAGE_NAME }}"
  subject-digest: ${{ steps.push.outputs.digest }}
  push-to-registry: false