feat: event dispatch substitutions

roles/docker-deployments/templates/event-dispatcher.yaml

@@ -6,6 +6,7 @@ services:
       restart: always
       volumes:
           - "/data/event-dispatcher/instance/:/app/instance/"
+          - "/data/event-dispatcher/substitutions/:/app/substitutions/"
       environment:
           LDAP_SERVER : "{{ ldap_connection_url }}"
           LDAP_BIND_DN : "{{ ldap_bind_dn }}"
@@ -14,6 +15,8 @@ services:
   
           DISPATCH_ACCESS_TOKEN: "{{ event_dispatcher_pass }}"
           SETTINGS_ACCESS_TOKEN: "{{ notification_settings_access_token }}"
+
+          SUBSTITUTION_MAP: /app/substitutions/substitutions.yaml
   
   event-dispatcher-worker:
       image: harbor-registry.atlantishq.de/atlantishq/event-dispatcher-worker