Fix lint

lumen/ai/prompts/plan_agent.jinja2

@@ -37,4 +37,4 @@ If you do not think you can solve the problem given the current information prov
 
 {% if unmet_dependencies %}
 Note that a previous plan was unsuccessful because it did not satisfy the following required pieces of information: {unmet_dependencies!r}
-{% endif %}
+{% endif %}