fix : Expand shape input was set as Param instead of Data

include/aidge/operator/Expand.hpp

@@ -73,7 +73,7 @@ class Expand_Op
      */
     Expand_Op()
         : OperatorTensor(Type,
-                         {InputCategory::Data, InputCategory::Param},
+                         {InputCategory::Data, InputCategory::Data},
                          1) {}
 
     Expand_Op(const Expand_Op &op);