build(database): upgrade Postgres to version 13

NS-13.

Author: nikomakela

README.md

@@ -52,7 +52,7 @@ If you encounter deprecation warnings on newer versions, you may need to downgra
 
 ### PostgreSQL
 
-Postgresql 12 is the minimum version required. You can check your version by running `psql --version`.
+Postgresql 13 is the minimum version required. You can check your version by running `psql --version`.
 
 If you are running the project without Docker, you may need to install and configure PostgreSQL manually. The default configuration file is `docker-compose.env.yaml`, which you may need to adjust for your local setup.
 

docker-compose.yml

@@ -1,6 +1,6 @@
 services:
   postgres:
-    image: postgres:12
+    image: postgres:13
     restart: on-failure
     environment:
       POSTGRES_USER: notification_service
@@ -11,7 +11,7 @@ services:
     #        networks:
     #            - helsinki
     volumes:
-      - pgdata:/var/lib/postgresql/data
+      - pgdata:/var/lib/postgresql@13/data
     container_name: notification_service-db
 
   keycloak:

docs/development-without-docker.md

@@ -6,7 +6,7 @@ Please refer to the [main README](/README.md) for the latest instructions.
 
 Prerequisites:
 
-- PostgreSQL 12
+- PostgreSQL 13
 - Python 3.11
 - Keycloak