### 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("get_focus_owner()", "get_viewport().gui_get_focus_owner()");
	}
	// 
	if (line.contains(".pressed")) {
		int start = line.find(".pressed");
		bool foundNextEqual = false;
		String line_to_check = line.substr(start + String(".pressed").length());
		for (int current_index = 0; line_to_check.length() > current_index; current_index++) {
			char32_t chr = line_to_check.get(current_index);
			if (chr == '\t' || chr == ' ') {
				continue;
			} else if (chr == '=') {
				foundNextEqual = true;
			} else {
				break;
			}
		}
		if (foundNextEqual) {
			line = line.substr(0, start) + ".button_pressed" + line.substr(start + String(".pressed").length());
		}
	}
	// 
	if (contains_function_call(line, "rotating")) {
		int start = line.find("rotating");
		bool foundNextEqual = false;
		String line_to_check = line.substr(start + String("rotating").length());
		String assigned_value;
		for (int current_index = 0; line_to_check.length() > current_index; current_index++) {
			char32_t chr = line_to_check.get(current_index);
			if (chr == '\t' || chr == ' ') {