LengthChanged missing a parameter in SerialSimulation.luau, ParallelSimulation.luau

TypeDef:

<img width="1412" height="423" alt="Image" src="https://github.com/user-attachments/assets/b6b45664-bd70-4016-873e-bc843370d61f" />

Problem:

<img width="1412" height="423" alt="Image" src="https://github.com/user-attachments/assets/ff06b168-5ed0-4130-9d26-e901255f26d0" />