chore: 🎨 Improve postgres compose.

Author: gbm25

.github/workflows/infra/docker/postgres-compose-pre.yml

@@ -6,13 +6,13 @@ services:
     container_name: postgres
     restart: always
     environment:
-      POSTGRES_USER: yourusername  # Replace with your desired username
-      POSTGRES_PASSWORD: yourpassword  # Replace with your desired password
-      POSTGRES_DB: yourdatabase  # Replace with your desired database name
+      POSTGRES_USER: ${POSTGRES_USER}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
+      POSTGRES_DB: ${POSTGRES_DB}
     ports:
-      - "5432:5432"  # Maps port 5432 on the host to port 5432 in the container
+      - "5432:5432"
     volumes:
-      - postgres_data:/var/lib/postgresql/data  # Persistent data storage
+      - postgres_data:/var/lib/postgresql/data
 
 volumes:
   postgres_data: