ci: remove duplicate pg client tools from app image

Author: NGPixel

docker/app.Dockerfile

@@ -9,13 +9,7 @@ ARG USER_UID=1000
 ARG USER_GID=$USER_UID
 COPY docker/scripts/app-setup-debian.sh /tmp/library-scripts/docker-setup-debian.sh
 RUN sed -i 's/\r$//' /tmp/library-scripts/docker-setup-debian.sh && chmod +x /tmp/library-scripts/docker-setup-debian.sh
-
-# Add Postgresql Apt Repository to get 14    
-RUN echo "deb http://apt.postgresql.org/pub/repos/apt $(lsb_release -cs)-pgdg main" | tee /etc/apt/sources.list.d/pgdg.list
-RUN wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add -
-
 RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
-    && apt-get install -y --no-install-recommends postgresql-client-14 pgloader \
     # Remove imagemagick due to https://security-tracker.debian.org/tracker/CVE-2019-10131
     && apt-get purge -y imagemagick imagemagick-6-common \
     # Install common packages, non-root user