buildx failed with: ERROR: failed to solve: process "/bin/sh -c fname=\"cni-plugins-${TARGETOS:-linux}-${TARGETARCH:-amd64}-${CNI_PLUGINS_VERSION}.tgz\" && curl -o \"${fname}\" -fsSL --proto '=https' --tlsv1.2 \"https://github.com/containernetworking/plugins/releases/download/${CNI_PLUGINS_VERSION}/${fname}\" && grep \"${fname}\" \"/SHA256SUMS.d/cni-plugins-${CNI_PLUGINS_VERSION}\" | sha256sum -c && mkdir -p /out/libexec/cni && tar xzf \"${fname}\" -C /out/libexec/cni && rm -f \"${fname}\" && echo \"- CNI plugins: ${CNI_PLUGINS_VERSION}\" >> /out/share/doc/nerdctl-full/README.md" did not complete successfully: exit code: 22