don't build docker images that doesn't exist.

Author: kommendorkapten

.github/workflows/docker.yaml

@@ -44,11 +44,3 @@ jobs:
           subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           subject-digest: ${{ steps.push.outputs.digest }}
           push-to-registry: true
-      - name: Build and push unsigned image
-        id: push-unsigned
-        uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6.18.0
-        with:
-          context: .
-          file: Dockerfile.unsigned
-          push: true
-          tags: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:unsigned