Make ancestorClass option consistency to underscore #159

Job	Run time
PHP-CS-Fixer	11s
check	10s
PHPStan	18s
PHP 8.2 tests (No Symfony specified)	28s
PHP 8.1 tests (No Symfony specified)	12s
PHP 8.5 tests (No Symfony specified)	16s
Twig-CS-Fixer	6s
PHP 8.3 tests (No Symfony specified)	9s
PHP 8.4 tests (No Symfony specified)	21s
PHP 8.4 tests (Dev deps)	14s
PHP 8.1 tests (Lowest deps)	13s
PHP 8.1 tests (Symfony 6)	17s
	2m 55s

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