Remove unnecessary blank lines in Dockerfiles for exttester and pgupgradetester

Author: m3hm3t

circleci/images/exttester/Dockerfile

@@ -175,7 +175,6 @@ apt-get install -y --no-install-recommends --allow-downgrades \
 rm -rf /var/lib/apt/lists/*
 EOF
 
-
 # add postgress to the path
 ENV PATH=/usr/lib/postgresql/$PG_MAJOR/bin/:$PATH
 

circleci/images/pgupgradetester/Dockerfile

@@ -62,7 +62,6 @@ curl -sf https://www.postgresql.org/media/keys/ACCC4CF8.asc | APT_KEY_DONT_WARN_
 echo "deb https://apt.postgresql.org/pub/repos/apt bullseye-pgdg main" >> /etc/apt/sources.list.d/postgresql.list
 echo "deb https://apt-archive.postgresql.org/pub/repos/apt bullseye-pgdg-archive main" >> /etc/apt/sources.list.d/postgresql.list
 
-
 apt-get update
 
 pkgs=();