Fix error when proxying a method with a mixed argument with a null de…

…fault value

Without this change, trying to proxy a Symfony\Component\Console\Command\Command
would result in an InvalidArgumentException `Type "mixed" cannot be nullable` from
the Laminas code generator.

Fix deprecations related to implicit nullable types

Fix generating default values

Fix generating proxies for arguments promoted as properties

Create tag v1.0.14

Fix exporting default values on PHP 8.2/8.1

Fix dumping complex return types for magic methods

Create tag v1.0.11

Create tag v1.0.10

Create tag v1.0.9