Update test containers for PostgreSQL 18 release.

Remove test repositories for Debian and RHEL.

Author: sfc-gh-dachristensen

test/Dockerfile.debian

@@ -17,7 +17,7 @@ RUN useradd -m -u $UID -g $GID -o -s /bin/bash postgres
 
 # Add PostgreSQL repository
 RUN apt-get install -y --no-install-recommends postgresql-common
-RUN /usr/share/postgresql-common/pgdg/apt.postgresql.org.sh -y -c 18
+RUN /usr/share/postgresql-common/pgdg/apt.postgresql.org.sh -y
 
 # Install PostgreSQL
 ENV PGVERSION=18

test/Dockerfile.rhel

@@ -20,9 +20,6 @@ RUN dnf install -y https://download.postgresql.org/pub/repos/yum/reporpms/EL-8-`
 # Disable PostgreSQL in default repository
 RUN dnf -qy module disable postgresql
 
-# Enable PG18 repo (can be removed after the official release)
-RUN dnf config-manager --set-enabled pgdg18-updates-testing
-
 # Install PostgreSQL
 ENV PGVERSION=18