Fix PHPStan for Twig 4.x #3009

Job	Run time
PHPStan (8.4)	19s
PHP 8.2	19s
PHP 8.3	15s
PHP 8.4	28s
cache-extra PHP 8.2	17s
Integration tests with PHP ${{ matrix.php-version }}	0s
cssinliner-extra PHP 8.2	16s
html-extra PHP 8.2	18s
inky-extra PHP 8.2	15s
intl-extra PHP 8.2	19s
markdown-extra PHP 8.2	25s
string-extra PHP 8.2	16s
twig-extra-bundle PHP 8.2	29s
cache-extra PHP 8.3	13s
cssinliner-extra PHP 8.3	19s
html-extra PHP 8.3	15s
inky-extra PHP 8.3	27s
intl-extra PHP 8.3	36s
markdown-extra PHP 8.3	40s
string-extra PHP 8.3	20s
twig-extra-bundle PHP 8.3	26s
cache-extra PHP 8.4	14s
cssinliner-extra PHP 8.4	15s
html-extra PHP 8.4	14s
inky-extra PHP 8.4	18s
intl-extra PHP 8.4	18s
markdown-extra PHP 8.4	26s
string-extra PHP 8.4	14s
twig-extra-bundle PHP 8.4	19s
	9m 30s

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