Fix PHPStan for Twig 4.x #3071

Job	Run time
PHPStan (8.4)	13s
PHP 8.2	9s
PHP 8.3	10s
PHP 8.4	10s
cache-extra PHP 8.2	9s
Integration tests with PHP ${{ matrix.php-version }}	0s
cssinliner-extra PHP 8.2	14s
html-extra PHP 8.2	9s
inky-extra PHP 8.2	9s
intl-extra PHP 8.2	14s
markdown-extra PHP 8.2	12s
string-extra PHP 8.2	8s
twig-extra-bundle PHP 8.2	11s
cache-extra PHP 8.3	8s
cssinliner-extra PHP 8.3	9s
html-extra PHP 8.3	12s
inky-extra PHP 8.3	8s
intl-extra PHP 8.3	9s
markdown-extra PHP 8.3	9s
string-extra PHP 8.3	9s
twig-extra-bundle PHP 8.3	11s
cache-extra PHP 8.4	13s
cssinliner-extra PHP 8.4	10s
html-extra PHP 8.4	10s
inky-extra PHP 8.4	12s
intl-extra PHP 8.4	8s
markdown-extra PHP 8.4	13s
string-extra PHP 8.4	9s
twig-extra-bundle PHP 8.4	18s
	4m 56s

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