Fix: Typo (astronomer#917)

it is `has_test` property instead of `has_text`

cosmos/dbt/graph.py

@@ -460,7 +460,7 @@ def load_from_dbt_manifest(self) -> None:
 
     def update_node_dependency(self) -> None:
         """
-        This will update the property `has_text` if node has `dbt` test
+        This will update the property `has_test` if node has `dbt` test
 
         Updates in-place:
         * self.filtered_nodes