Update PostgreSql.php for v18

V18 of Postgres requires a different postgres_data path:
docker-library/postgres#1259

Author: williamjulianvicary

app/Services/PostgreSql.php

@@ -23,7 +23,7 @@ class PostgreSql extends BaseService
 
     protected $dockerRunTemplate = '-p "${:port}":5432 \
         -e POSTGRES_PASSWORD="${:root_password}" \
-        -v "${:volume}":/var/lib/postgresql/data \
+        -v "${:volume}":/var/lib/postgresql \
             "${:organization}"/"${:image_name}":"${:tag}"';
 
     protected static $displayName = 'PostgreSQL';