Travis postgres update: removing unnecessary start of mongo-runner (#6594)

* use pg-promise native pg-connection-string to parse uri instead of ParseConfigParser.js. The allows for a more felxible uri for ssl and other params

* Revert "use pg-promise native pg-connection-string to parse uri instead of ParseConfigParser.js. The allows for a more felxible uri for ssl and other params"

This reverts commit a5926d3ff7b97f72bb0c5bced15f34942cd1a96d.

* Updating travis postgres and removing unnecessary start of mongo-runner. Ensuring before_script and before_install matches the rest of travis

scripts/before_script_postgres.sh

@@ -1,13 +1,15 @@
 #!/bin/bash
-  
+
 set -e
 
 echo "[SCRIPT] Before Script :: Setup Parse DB for Postgres ${POSTGRES_MAJOR_VERSION}"
 
+node -e 'require("./lib/index.js")'
+greenkeeper-lockfile-update
+
 psql -v ON_ERROR_STOP=1 -p 5433 --username "postgres" --dbname "${POSTGRES_DB}" <<-EOSQL
     CREATE DATABASE parse_server_postgres_adapter_test_database;
     \c parse_server_postgres_adapter_test_database;
     CREATE EXTENSION postgis;
     CREATE EXTENSION postgis_topology;
 EOSQL
-