Add load parameter

.github/workflows/container.yml

@@ -174,6 +174,7 @@ jobs:
         uses: docker/build-push-action@v6
         with:
           platforms: linux/amd64,linux/arm64/v8,linux/ppc64le,linux/s390x,linux/riscv64
+          load: true # this is important, as this tells build-push-action to save the container to the local docker daemon
           push: false
           build-args: |
             BUILD_DATE=${{ steps.get_latest_release_metadata.outputs.build_date }}