reduce min connection to 1

[vincentsarago]

By default stac-fastapi-pgstac has db_min_conn_size set to 10. When we launch the application we create 2 pools (read / write) so with a min conn size of 10 meaning 20 connections for one application.

This can grow a lot if you have Uvicorn serving multiple stac-fastapi-pgstac application in threads 😅

stac-fastapi-pgstac/stac_fastapi/pgstac/config.py

Line 67 in 9e302ea

db_min_conn_size: int = 10