* Update and improve RSA keys handling and support

This update enhances the RSA keys handling in the KeyConverter class, adding support for RSASSA-PSS encryption. It includes a new test case for RSASSA-PSS keys and upgrades the "spomky-labs/pki-framework" dependency, which provides underlying support for encryption algorithms. Key errors are now clarified with enhanced exception handling.

* Update PHPStan baseline with new types rules

The PHPStan baseline is updated to include newly identified type issues concerning return value types in iterable arrays for getSupportedTypes() method in both JWESerializer and JWSSerializer classes. Also, remove irrelevant default property type issues of various command classes thus reducing noise in the baseline file.