[Serializer] Allow (de)normalization of empty objects in PropertyNormalizer#46417

olsavmic wants to merge 2 commits intosymfony:7.4symfony/symfony:7.4from

olsavmic:olsavmic-property-normalizer-allow-empty-objectolsavmic/symfony:olsavmic-property-normalizer-allow-empty-objectCopy head branch name to clipboard