update pretix role

pretix/files/pretix.cfg.j2

@@ -11,8 +11,7 @@ registration={% if pretix.get('registration', False) %}on{% else %}off{% endif %
 long_sessions={% if pretix.get('long-sessions', True) %}on{% else %}off{% endif %}
 
 [database]
-; Replace postgresql_psycopg2 with mysql for MySQL
-backend=postgresql_psycopg2
+backend=postgresql
 name=postgres
 user=postgres
 password={{ pretix.get('postgres-password') }}

pretix/init.sls

@@ -4,7 +4,7 @@
 {% set pretix = salt['pillar.get']('pretix', {}) %}
 {% set volume = docker.volume_root ~ '/pretix' %}
 {% set image = 'pretix/standalone:stable' %}
-{% set postgres_image = 'postgres:10.6' %}
+{% set postgres_image = 'postgres:17.2' %}
 
 include:
   - docker