Merge branch 'feature/connection_pooling' into 'master'

Enable PostgreSQL connection pooling

See merge request AlekSIS/official/AlekSIS!345

aleksis/core/settings.py

@@ -172,6 +172,7 @@ DATABASES = {
         "HOST": _settings.get("database.host", "127.0.0.1"),
         "PORT": _settings.get("database.port", "5432"),
         "ATOMIC_REQUESTS": True,
+        "CONN_MAX_AGE": _settings.get("database.conn_max_age", None),
     }
 }