Replace CData with Data in model grpah

Author: tomicapretto

pymc/model_graph.py

@@ -177,7 +177,7 @@ def _make_node(self, var_name, graph, *, nx=False, cluster=False, formatting: st
         else:
             shape = "box"
             style = "rounded, filled"
-            label = f"{var_name}\n~\nCData"
+            label = f"{var_name}\n~\nData"
 
         kwargs = {
             "shape": shape,