message: fix(migrations): sl_columns is_temporal mapping
diff: @@ -430,7 +430,7 @@ def copy_columns(session: Session) -> None:
  ),
  sa.literal(False).label("is_aggregation"),
  is_physical_column.label("is_physical"),
  - TableColumn.is_dttm.label("is_temporal"),
  + func.coalesce(TableColumn.is_dttm, False).label("is_temporal"),
  func.coalesce(TableColumn.type, UNKNOWN_TYPE).label("type"),
  TableColumn.extra.label("extra_json"),
  ]
  