… full deserialization path (NorthBlue333)

This PR was merged into the 8.1 branch.

Discussion
----------

[Serializer] Add `COLLECT_EXTRA_ATTRIBUTES_ERRORS` and full deserialization path

| Q             | A
| ------------- | ---
| Branch?       | 8.1
| Bug fix?      | yes/no
| New feature?  | yes
| Deprecations? | yes
| Tickets       | Fix #46283, Fix #46284
| License       | MIT
| Doc PR        | symfony/symfony-docs#16872

The `PartialDenormalizationException` is used as unexpected extra attributes are, IMO, part of the denormalization exception.
This enables executing:

```php
  try {
       $dto = $serializer->deserialize($request->getContent(), MyDto::class, 'json', [
            DenormalizerInterface::COLLECT_DENORMALIZATION_ERRORS => true,
            DenormalizerInterface::COLLECT_EXTRA_ATTRIBUTES_ERRORS => true,
            DenormalizerInterface::ALLOW_EXTRA_ATTRIBUTES => false,
        ]);
    } catch (PartialDenormalizationException $e) {
        $violations = new ConstraintViolationList();
        /** `@var` NotNormalizableValueException */
        foreach ($e->getErrors() as $exception) {
            $message = sprintf('The type must be one of "%s" ("%s" given).', implode(', ', $exception->getExpectedTypes()), $exception->getCurrentType());
            $parameters = [];
            if ($exception->canUseMessageForUser()) {
                $parameters['hint'] = $exception->getMessage();
            }
            $violations->add(new ConstraintViolation($message, '', $parameters, null, $exception->getPath(), null));
        };
        if (null !== $extraAttributesException = $e->getExtraAttributesError()) {
            foreach ($extraAttributesException->getExtraAttributes() as $extraAttribute) {
                $violations->add(new ConstraintViolation('This attribute is not allowed.', '', [], null, $extraAttribute, null));
            };
        }

        return $this->json($violations, 400);
    }
```

Commits
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205dd70 Add COLLECT_EXTRA_ATTRIBUTES_ERRORS and full deserialization path