fix: resolve ownership

Author: kazemmdev

fpm-alpine/8.3/dockerfile

@@ -6,7 +6,8 @@ LABEL maintainer="Kazem Mirzaei <[email protected]>" \
 # Use non-root user for production
 ARG USER=www
 ARG GROUP=www
-ENV USER=${USER} GROUP=${GROUP} TZ=UTC
+
+USER root
 
 # Install runtime and build dependencies
 RUN apk update && apk upgrade && apk add --no-cache \