### Godot version

v4.0.3.rc2.official [2ac4e3bb3]

### System information

Windows 10

### Issue description

It seems that joypad button numbers are changed in Godot 4. The Godot 3->4 conversion doesn't change the button numbers.

This Godot 3 Input Map:

![kuva](https://github.com/godotengine/godot/assets/49998025/86a7db2a-b5b5-48a3-84f9-999de1ed584a)

is converted to this:

![kuva](https://github.com/godotengine/godot/assets/49998025/30ef5803-0559-4408-b0ac-e878bf167ff7)

It seems that only buttons 0-3 are same in Godot 3 and 4:

![kuva](https://github.com/godotengine/godot/assets/49998025/37818929-9582-4a11-bdbe-617fd51dd501)


### Steps to reproduce

Convert any Godot 3 project having joypad buttons assigned to inputs.

### Minimal reproduction project

[conv_test.zip](https://github.com/godotengine/godot/files/11525027/conv_test.zip)

line = line.replace("OS.GetWindowSafeArea()", "DisplayServer.ScreenGetUsableRect()");
	// 
	if (line.contains("GetTree().SetInputAsHandled()")) {
		line = line.replace("GetTree().SetInputAsHandled()", "GetViewport().SetInputAsHandled()");
	}
	// 
	// 
	if (line.contains("_UnhandledKeyInput(InputEventKey @event)")) {
		line = line.replace("_UnhandledKeyInput(InputEventKey @event)", "_UnhandledKeyInput(InputEvent @event)");
	}
	// 
	if (line.contains("Connect(")) {
		int start = line.find("Connect(");
		// 
		if (start == 0 || line.get(start - 1) != 's') {
			int end = get_end_parenthesis(line.substr(start)) + 1;
			if (end > -1) {
				Vector<String> parts = parse_arguments(line.substr(start, end));