fix: run as root in docker

Dockerfile

@@ -18,10 +18,6 @@ RUN apt-get -y update  \
     && apt-get install -y postgresql-client \
     && apt-get install -y default-mysql-client
 
-RUN useradd -s /bin/bash appuser
-RUN mkdir -p /app/backup-x-files \ 
-    && chown -R appuser:root /app/backup-x-files
-USER appuser
 WORKDIR /app
 
 VOLUME /app/backup-x-files