Bug report

In phpstan/phpstan-src@ccb1d4d#diff-c312b4005d27355bf5f061f358f3627e530135b48e7f1fac49b235784a821d36R10152

The samesite options was restrict to 'None\'|\'Lax\'|\'Strict\', but it should be case insensitive instead.

• The RFC consider every value case insensitively
• It works
• Symfony use lowercase https://github.com/symfony/symfony/blob/5.x/src/Symfony/Component/HttpFoundation/Cookie.php#L22

@ondrejmirtes Is there a way to tell that the constant can be case insensitive or should I change the signature to
\'None\'|\'Lax\'|\'Strict\'|'none\'|\'lax\'|\'strict\' in order to at least works with the most common values ?