remove errant postgresql install

.github/workflows/test_update_api_database.yml

@@ -65,7 +65,7 @@ jobs:
                 sudo sh -c 'echo "deb https://apt.postgresql.org/pub/repos/apt $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list'
                 sudo wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
                 sudo apt-get update
-                sudo apt-get install -y postgresql postgresql-client-15
+                sudo apt-get install -y postgresql-client-15
 
             - name: Check postgres install
               run: pg_dump --version