buildx failed with: ERROR: failed to solve: process "/bin/sh -c <<\"eot\" bash -euo pipefail\n apt-get update\n apt-get install --no-install-recommends --no-install-suggests -y ca-certificates gnupg curl apt-transport-https\n curl -fsSL https://cs.nginx.com/static/keys/nginx_signing.key | gpg --dearmor > /etc/apt/trusted.gpg.d/nginx_signing.gpg\n curl -fsSL -o /etc/apt/apt.conf.d/90pkgs-nginx https://cs.nginx.com/static/files/90pkgs-nginx\n DEBIAN_VERSION=$(awk -F '=' '/^VERSION_CODENAME=/ {print $2}' /etc/os-release)\n printf \"%s\\n\" \"deb [trusted=yes] https://${NGINX_REPO_URL}/plus/${NGINX_PLUS_VERSION^^}/debian ${DEBIAN_VERSION} nginx-plus\" > /etc/apt/sources.list.d/nginx-plus.list\n apt-get update\n apt-get install -y nginx-plus\n apt-get remove --purge --auto-remove -y gnupg\n rm -rf /var/lib/apt/lists/*\n rm /etc/apt/apt.conf.d/90pkgs-nginx /etc/apt/sources.list.d/nginx-plus.list\neot" did not complete successfully: exit code: 1

nginx-repo.crt= is not a valid secret