Add run lifecycle timestamps - improvments (#2601)

Co-authored-by: Shuchang Zheng <wintonzheng0325@gmail.com>

skyvern/forge/sdk/schemas/task_v2.py

@@ -45,6 +45,9 @@ class TaskV2(BaseModel):
     extracted_information_schema: dict | list | str | None = None
     error_code_mapping: dict | None = None
     model: dict[str, Any] | None = None
+    queued_at: datetime | None = None
+    started_at: datetime | None = None
+    finished_at: datetime | None = None
     created_at: datetime
     modified_at: datetime