fix old portainer .env

auth-docker/authentik/compose.yaml

@@ -16,7 +16,7 @@ services:
       POSTGRES_USER: ${PG_USER:-authentik}
       POSTGRES_DB: ${PG_DB:-authentik}
     env_file:
-      - stack.env
+      - .env
     labels:
       - wud.watch=false
   redis:
@@ -45,7 +45,7 @@ services:
       - ./media:/media
       - ./custom-templates:/templates
     env_file:
-      - stack.env
+      - .env
     ports:
       - "${COMPOSE_PORT_HTTP:-9000}:9000"
       - "${COMPOSE_PORT_HTTPS:-9443}:9443"
@@ -75,7 +75,7 @@ services:
       - ./certs:/certs
       - ./custom-templates:/templates
     env_file:
-      - stack.env
+      - .env
     depends_on:
       - postgresql
       - redis