Merge pull request #1585 from schmittjoh/dnf-union-types

Do not typehint DNF union types

Merge pull request #1581 from iKsSs/enum-test-attribute

Test - add attributes to ObjectWithEnums' props

Merge pull request #1571 from scyzoryck/union-properties-array

feat(unions): Add support for simple arrays

Merge pull request #1563 from scyzoryck/fix-issue-1562

fix(unions): Filter out null type

Merge pull request #1559 from iKsSs/date-deserialization

DateTime - Deserialize from more formats (default)

Merge pull request #1471 from mbabker/optional-annotations

[B/C Break] Make the Annotations package optional in the builder API

Merge pull request #1529 from mbabker/annotations-marker-interface

Introduce a marker interface for annotation/attribute classes

Merge pull request #1526 from boesing/bugfix/missing-attributes

Allow missing attributes in serialized objects

Merge pull request #1497 from mbabker/check-yaml-availability

Only add the YamlDriver to the chain when `symfony/yaml` is installed

Merge pull request #1498 from scyzoryck/phpstan-lvl-3

refactor(phpstan): Implement PHPStan lvl 3