refactor: remove image digest step

The digest is already available within the `build-push` step.

PR: #33

.github/workflows/containers.yml

@@ -96,9 +96,6 @@ jobs:
           cache-from: type=registry,ref=docker.io/${{ steps.vars.outputs.docker-hub-namespace }}/${{ env.cache-repository-name }}:dev
           cache-to: ${{ (steps.docker-hub-login.outcome == 'success') && (matrix.target == 'dev') && format('type=registry,ref=docker.io/{0}/{1}:{2},mode=max', steps.vars.outputs.docker-hub-namespace, env.cache-repository-name, 'dev') || null }}
           push: ${{ steps.docker-hub-login.outcome == 'success' }}
-      - name: Image digest
-        if: ${{ !startsWith(github.ref, 'refs/tags') }}
-        run: echo ${{ steps.build-push.outputs.digest }}
       - name: Release (pull candidate, tag, push)
         if: ${{ github.ref == steps.vars.outputs.tag-trigger-ref }}
         run: |