Issue #3324838 by Spokje: Fix PHPStan L2 error "PHPDoc tag @throws with type Foo is not subtype of Throwable"

Issue #3255245 by Spokje, longwave, daffie, Gábor Hojtsy, Taran2L, murilohp: [Symfony 6] Revert 3231603 to use our own TranslatorInterface

Issue #3231683 by daffie, longwave: [Symfony 6] A number of methods of the class Drupal\Core\TypedData\Validation\ExecutionContext are considered internal and Drupal should not override them

Issue #2937513 by eltori, longwave, klausi, catch, idebr: Fix 'Drupal.Commenting.DocComment.TagGroupSpacing' coding standard

Issue #3030485 by catch, R.shaikh, Gábor Hojtsy, alexpott: [Symfony 5] The "Drupal\Core\Validation\TranslatorInterface" interface extends "Symfony\Component\Translation\TranslatorInterface" that is deprecated since Symfony 4.2, use Symfony\Contracts\Translation\TranslatorInterface instead

Issue #2665992 by alexpott, klausi, heykarthikwithu, xjm, tstoeckler: @file is not required for classes, interfaces and traits

Issue #2546618 by plach, dawehner, chx, bojanz: Replace the Symfony Translation component with a custom interface since we don't use it