feat(sub): Add trial_ended_at (#253)

Co-authored-by: Jérémy Denquin <jdenquin@users.noreply.github.com>

Author: julienbourdeau

lago_python_client/models/subscription.py

@@ -30,6 +30,8 @@ class SubscriptionResponse(BaseResponseModel):
     billing_time: Optional[str]
     terminated_at: Optional[str]
     ending_at: Optional[str]
+    trial_ended_at: Optional[str]
+    subscription_date: Optional[str]
     subscription_at: Optional[str]
     previous_plan_code: Optional[str]
     next_plan_code: Optional[str]