Update Dockerfile

Author: nataliaweni

docker/Dockerfile

@@ -100,7 +100,7 @@ RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
 COPY --from=build /install /usr/local
 COPY --chown=${PROJECT_USER}:${PROJECT_GROUP} . ${PROJECT_PATH}
 
-USER "${PROJECT_USER}:${PROJECT_USER}"
+USER "${PROJECT_USER}:${PROJECT_GROUP}"
 
 EXPOSE 8000