Update docker-compose file

- Move from postgres:13 to postgres:16
- Move from redis:7.0 to redis:7-alpine

contrib/container/docker-compose.yml

@@ -36,7 +36,7 @@ services:
     # Database service
     # Use PostgreSQL as the database backend
     inventree-db:
-        image: postgres:13
+        image: postgres:16
         container_name: inventree-db
         expose:
             - ${INVENTREE_DB_PORT:-5432}/tcp
@@ -52,7 +52,7 @@ services:
 
     # redis acts as database cache manager
     inventree-cache:
-        image: redis:7.0
+        image: redis:7-alpine
         container_name: inventree-cache
         env_file:
             - .env