Fixed separation of ports on GraphNode

Fixes #32474.

(cherry picked from commit 47c929c9728454f1b0013e4de3b3a27a1f9c69dd)

scene/gui/graph_node.cpp

@@ -504,8 +504,7 @@ void GraphNode::_connpos_update() {
 			}
 		}
 
-		if (vofs > 0)
-			vofs += sep;
+		vofs += sep;
 		vofs += size.y;
 		idx++;
 	}