ci(CAR-1423): two-stage load->push to fix auth manifest push (unknown)

ci(CAR-1423): disable provenance/sbom attestations on auth build-push (#40)

.gitea/workflows/ci.yml

@@ -59,11 +59,21 @@ jobs:
             type=raw,value=${{ steps.calver.outputs.version }},enable=${{ github.ref == 'refs/heads/main' }}
             type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}
 
-      - name: Build and push Docker image
+      - name: Build Docker image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          load: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+
+      - name: Push Docker image
         uses: docker/build-push-action@v6
         with:
           context: .
           push: true
+          provenance: false
+          sbom: false
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}