Passing zero-length array when Rpc-Calling a method that accepts one byte array results in `Rpc Method not found.`

### Tested versions

Reproducible in:
- 4.2.1 stable
- 4.3.0 dev6
- 4.3.0 rc2

### System information

Godot v4.3.rc2.mono - Windows 10.0.17763 - Vulkan (Forward+) - dedicated NVIDIA GeForce RTX 4060 Ti (NVIDIA; 31.0.15.5222) - AMD Ryzen 9 5900X 12-Core Processor (24 Threads)

### Issue description

As the title mentioned, assume we have a method that matches the following signature:
```csharp
[Rpc] private void TestRpc(byte[] byteArray)
```

```gdscript
@rpc
func test_rpc(byte_array: PackedByteArray)
```

If we attempt to call this method with a zero-length byte array
```csharp
Rpc("TestRpc", new byte[0])
```

```gdscript
rpc("test_rpc", PackedByteArray())
```

Godot will report
- For `C#`
```
E 0:00:03:0553 _process_rpc: RPC - 'Control(MainCS.cs)::TestRpc': Method not found
modules/multiplayer/scene_rpc_interface.cpp:290 @ _process_rpc()
```

- For `GDScript`
```
E 0:00:03:0934 _process_rpc: RPC - 'Control(main.gd)::test_rpc': Method expected 1 arguments, but called with 0
modules/multiplayer/scene_rpc_interface.cpp:290 @ _process_rpc()
```

~~This issue is only in the `C#` scripts, not in the corresponding `GDScript` implementation.~~
Thanks @AThousandShips for pointing out my mistake in the `GDScript` implementation

### Steps to reproduce

1. Download and open the MRP with `Godot 4.3.0 rc2 with .Net module`.
2. From the `Debug/Customize Run Instances`, enable `Multiple Instances` and set the instance number to 2, then close the `Run Instances` window.
3. Build and Run the project.
4. In one of the opening windows, press `As Host`.
5. In the other window, press `As Client`.
6. Inspect the error in the `Debugger` panel.

### Minimal reproduction project (MRP)

~~A `GDScript` replica has been included in this MRP to demonstrate this issue only affects C#.~~

~~[MrpPbArrayError.zip](https://github.com/user-attachments/files/16522787/MrpPbArrayError.zip)~~

This updated version includes both `GDScript` and `C#` implementations.

[MrpPbArrayErrorNew.zip](https://github.com/user-attachments/files/16529239/MrpPbArrayErrorNew.zip)

Start by reproducing the issue with the updated MrpPbArrayErrorNew.zip using the listed Godot versions and inspect modules/multiplayer/scene_rpc_interface.cpp at line 290. Compare the C# and GDScript zero-length byte-array calls; done means both RPC methods are found and invoked without the reported argument errors.

Written by the indexing model from the issue text.