buildx failed with: ERROR: failed to solve: process "/bin/sh -c apk add --no-cache git && go install github.com/caddyserver/xcaddy/cmd/xcaddy@latest && xcaddy build --output /usr/bin/caddy --with github.com/mholt/caddy-webdav --with github.com/caddy-dns/cloudflare" did not complete successfully: exit code: 1