### 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)

changed_elements.append_array(check_for_custom_rename(lines, "\\.shader", ".gdshader"));
			} else if (file_name.ends_with("project.godot")) {
				changed_elements.append_array(check_for_rename_common(RenamesMap3To4::project_godot_renames, reg_container.project_godot_regexes, lines));
				changed_elements.append_array(check_for_rename_common(RenamesMap3To4::builtin_types_renames, reg_container.builtin_types_regexes, lines));
				changed_elements.append_array(check_for_rename_input_map_scancode(lines, reg_container));
				changed_elements.append_array(check_for_rename_common(RenamesMap3To4::input_map_renames, reg_container.input_map_regexes, lines));
			} else if (file_name.ends_with(".csproj")) {
				
			} else {
				ERR_PRINT(vformat("\"%s\", is not supported!", file_name));
				continue;
			}
			for (String &line : lines) {
				if (uint64_t(line.length()) > maximum_line_length) {
					ignored_lines += 1;
				}
			}
		} else {
			reason.append(vformat("\tERROR: File has exceeded the maximum size allowed  - %d KB.", maximum_file_size / 1024));
			is_ignored = true;
		}
		uint64_t end_time = Time::get_singleton()->get_ticks_msec();
		String end_message = vformat("    Checking file took %10.3f ms.", (end_time - start_time) / 1000.0);
		if (ignored_lines != 0) {
			end_message += vformat(" Ignored %d lines, because their length exceeds maximum allowed characters - %d.", ignored_lines, maximum_line_length);
		}
		print_line(end_message);
		for (int k = 0; k < reason.size(); k++) {
			print_line(reason[k]);
		}