Removed ephemeral models from lineage.

elementary/monitor/fetchers/lineage/lineage.py

@@ -31,6 +31,8 @@ def get_nodes_depends_on_nodes(
                 sub_type=self.get_node_sub_type(node),
             )
             for node in nodes
+            # Ephemeral models are not included in the lineage graph.
+            if node["materialization"] != "ephemeral"
         ]
 
     @staticmethod