### 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)

Vector<String> found_renames;
	int current_line = 1;
	for (String &line : lines) {
		if (uint64_t(line.length()) <= maximum_line_length) {
			String old;
			if (line.contains("tool")) {
				old = line;
				line = reg_container.keyword_gdscript_tool.sub(line, "@tool", true);
				if (old != line) {
					found_renames.append(line_formatter(current_line, "tool", "@tool", line));
				}
			}
			if (line.contains("export")) {
				old = line;
				line = reg_container.keyword_gdscript_export_single.sub(line, "$1@export", true);
				if (old != line) {
					found_renames.append(line_formatter(current_line, "export", "@export", line));
				}
			}
			if (line.contains("export")) {
				old = line;
				line = reg_container.keyword_gdscript_export_mutli.sub(line, "@export", true);
				if (old != line) {
					found_renames.append(line_formatter(current_line, "export", "@export", line));
				}
			}
			if (line.contains("onready")) {
				old = line;