fix: test fix attest

Author: PierreJeanjacquot

.github/workflows/sconify.yml

@@ -153,13 +153,14 @@ jobs:
           echo "image=$DEBUG_IMAGE" >> "$GITHUB_OUTPUT"
           echo "checksum=$(docker image inspect $DEBUG_IMAGE | jq .[0].RepoDigests[0] | sed 's/"//g' | awk -F '@sha256:' '{print $2}')" >> "$GITHUB_OUTPUT"
           echo "mrenclave=$(docker run --rm -e SCONE_HASH=1 $DEBUG_IMAGE)" >> "$GITHUB_OUTPUT"
+          echo "id=$(docker image inspect $DEBUG_IMAGE | jq .[0].Id | sed 's/"//g')" >> "$GITHUB_OUTPUT"
 
       - name: Attest Debug Image
         if: ${{ inputs.sconify-debug }}
         uses: actions/attest-build-provenance@v2
         with:
           subject-name: ${{ env.IMAGE_REPO }}
-          subject-digest: sha256:${{ steps.push-debug.outputs.checksum }}
+          subject-digest: sha256:${{ steps.push-debug.outputs.id }}
           push-to-registry: true
 
       - name: Sconify Image Prod
@@ -201,5 +202,5 @@ jobs:
         uses: actions/attest-build-provenance@v2
         with:
           subject-name: ${{ env.IMAGE_REPO }}
-          subject-digest: sha256:${{ steps.push-prod.outputs.checksum }}
+          subject-digest: ${{ steps.push-prod.outputs.checksum }}
           push-to-registry: true