fix: fixed a problem with the mount path which cased an error while building:

Error Message from postgres-1:
"Error: in 18+, these Docker images are configured to store database data in a
format which is compatible with "pg_ctlcluster" (specifically, using
major-version-specific directory names).  This better reflects how
PostgreSQL itself works, and how upgrades are to be performed.

See also docker-library/postgres#1259

Counter to that, there appears to be PostgreSQL data in:
/var/lib/postgresql/data (unused mount/volume)

This is usually the result of upgrading the Docker image without
upgrading the underlying database using "pg_upgrade" (which requires both versions).

The suggested container configuration for 18+ is to place a single mount at /var/lib/postgresql which will then place PostgreSQL data in a
subdirectory, allowing usage of "pg_upgrade --link" without mount point boundary issues."

Author: th-huber

docker/postgres/compose.base.yml

@@ -4,7 +4,7 @@ services:
     restart: always
     shm_size: 128mb
     volumes:
-      - directloan-db:/var/lib/postgresql/data
+      - directloan-db:/var/lib/postgresql/
     networks:
       - backend_network
     environment: