Update proto/shared/shared.flow.proto

Co-authored-by: Nico Sammito <nico@sammito.de>
Signed-off-by: Raphael Götz <52959657+raphael-goetz@users.noreply.github.com>

Author: raphael-goetz

proto/shared/shared.flow.proto

@@ -81,9 +81,9 @@ message InputType {
   // Id of the node 
   int64 node_id = 1;
   // Index of the parameter inside the function
-  int64 parameter_id = 2;
+  int64 parameter_index = 2;
   // Index of the input type of the data type
-  int64 input_id = 3;
+  int64 input_index = 3;
 }
 
 message ReferencePath {