fix: disable QEMU cache on self-hosted runner

.gitea/workflows/build-engine.yml

@@ -23,6 +23,8 @@ jobs:
     steps:
       - name: Set up QEMU (for ARM builds)
         uses: docker/setup-qemu-action@v3
+        with:
+          cache-image: false
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3