Try without "the pg hack"

.github/workflows/test-package.yml

@@ -71,29 +71,6 @@ jobs:
         DATABASE_URL: "mysql://username:[email protected]:3306/testsuite"
       run: bash scripts/test.sh
 
-    - name: Install postgresql-client
-      run: |
-        sudo apt-get update
-        sudo apt-get install --yes postgresql-client
-
-    - name: Connect to PostgreSQL with CLI
-      run: env PGPASSWORD=password psql -h localhost -U username -c 'SELECT VERSION();' testsuite
-
-    - name: Show max connections
-      run: env PGPASSWORD=password psql -h localhost -U username -c 'SHOW max_connections;' testsuite
-
-    - name: Alter max connections
-      run: |
-        docker exec -i `docker ps -q  --filter ancestor=postgres:10.8` bash << EOF
-          sed -i -e 's/max_connections = 100/max_connections = 1000/' /var/lib/postgresql/data/postgresql.conf
-          sed -i -e 's/shared_buffers = 128MB/shared_buffers = 512MB/' /var/lib/postgresql/data/postgresql.conf
-        EOF
-        docker restart --time 0 postgres
-        sleep 5
-
-    - name: Show max connections
-      run: env PGPASSWORD=password psql -h localhost -U username -c 'SHOW max_connections;' testsuite
-
     - name: Run postgres
       env:
         DATABASE_URL: "postgresql://username:password@localhost:5432/testsuite"