Update Ubuntu repository installation.

Author: dwsteele

test/Dockerfile.debian

@@ -16,12 +16,8 @@ RUN groupadd -g $GID -o postgres
 RUN useradd -m -u $UID -g $GID -o -s /bin/bash postgres
 
 # Add PostgreSQL repository
-RUN RELEASE_CODENAME=`lsb_release -c | awk '{print $2}'` && \
-    echo 'deb http://apt.postgresql.org/pub/repos/apt/ '${RELEASE_CODENAME?}'-pgdg main' | \
-        tee -a /etc/apt/sources.list.d/pgdg.list
-RUN APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE=1 && \
-    wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
-RUN apt-get update
+RUN apt-get install -y --no-install-recommends postgresql-common
+RUN /usr/share/postgresql-common/pgdg/apt.postgresql.org.sh -y
 
 # Install PostgreSQL
 ENV PGVERSION=16