Fix pkg install issue during docker build

Dockerfile

@@ -37,19 +37,7 @@ EOF
 # stage.
 FROM debian:bullseye-slim AS final
 
-# Create a non-privileged user that the app will run under.
-# See https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#user
-ARG UID=10001
-RUN adduser \
-    --disabled-password \
-    --gecos "" \
-    --home "/nonexistent" \
-    --shell "/sbin/nologin" \
-    --no-create-home \
-    --uid "${UID}" \
-    appuser
-USER appuser
-
+# install required packges
 RUN apt update && apt install -y openssl libpq-dev pkg-config
 
 # Copy the executable from the "build" stage.