✨ Add support for setting POSTGRES_PORT (#333)

Co-authored-by: Martin Conraux <rhodes@protonmail.com>
Co-authored-by: Sebastián Ramírez <tiangolo@gmail.com>

docker-compose.yml

@@ -100,6 +100,7 @@ services:
       - SMTP_PASSWORD=${SMTP_PASSWORD}
       - EMAILS_FROM_EMAIL=${EMAILS_FROM_EMAIL}
       - POSTGRES_SERVER=db
+      - POSTGRES_PORT=${POSTGRES_PORT}
       - POSTGRES_DB=${POSTGRES_DB}
       - POSTGRES_USER=${POSTGRES_USER?Variable not set}
       - POSTGRES_PASSWORD=${POSTGRES_PASSWORD?Variable not set}