GenerateMarkdownDoc crashes if method parameter contains union or intersection type

[Naktibalda]

Steps to reproduce

Try to generate markdown of method having union or intersection type.

Expected behavior

At the very least it shouldn't crash, bonus points if it generates correct documentation

Actual behavior

https://github.com/Codeception/codeception.github.com/runs/7592669736?check_suite_focus=true#step:6:112

 [Development\GenerateMarkdownDoc] Processing \Codeception\Util\Locator
PHP Fatal error:  Uncaught Error: Call to undefined method ReflectionUnionType::getName() in /home/runner/work/codeception.github.com/codeception.github.com/vendor/consolidation/robo/src/Task/Development/GenerateMarkdownDoc.php:677
Stack trace:
#0 /home/runner/work/codeception.github.com/codeception.github.com/vendor/consolidation/robo/src/Task/Development/GenerateMarkdownDoc.php(732): Robo\Task\Development\GenerateMarkdownDoc->documentParam()

Type Error happens because of public static function isPrecise(WebDriverBy|array|string $locator): bool

System Configuration

Ubuntu 20.04, PHP 8.0.21

I will investigate this issue and raise PR to fix it.