Update NucleosDompdfExtension.php Extension Injection

[Kitee666]

Fix for Symfony 7.1

After upgrading to Symfony 7.1 I encountered a deprecation notice on your bundle.

The "Symfony\Component\HttpKernel\DependencyInjection\Extension" class is considered internal since Symfony 7.1, to be deprecated in 8.1; use Symfony\Component\DependencyInjection\Extension\Extension instead. It may change without further notice.

[core23]

Can you please run php-cs-fixer

[Kitee666]

Sure, sorry I forgor 😄
I'll do that as soon as I come back to work.

[Kitee666]

#495f717 have only php-cs-fixer fixes in extension files.
#43787e7 have "fixes" to other files after running php-cs-fixer in project
#6b0723b is just minor addition to composer with added "^7.1" at every symfony package.
I think I am just messing something up but I am not really sure what :(

[Kitee666]

Sorry, I am kinda new to open source contributions. I usually work on my own projects or collaborate with in-domain developers;
I hope it will work this time 😄

[core23]

Thanks @Kitee666 🚀

[Kitee666]

I am happy that I could help a little 😊
Thank you @core23 for creating this package!