fixup! Use environment variables for the config.

docker-compose.yml

@@ -79,7 +79,7 @@ services:
       MYSQL_HOST: mysql
       MYSQL_PASSWORD: *mysql_password  # pragma: allowlist secret
       MYSQL_USER: *mysql_user
-      NC_debug: "false"
+      NC_debug: ""
       NC_default_phone_region: IL
       NEXTCLOUD_ADMIN_PASSWORD: *admin_password  # pragma: allowlist secret
       NEXTCLOUD_ADMIN_USER: *admin_username