v1.13.0

Changelog

[59768df] feature #112 Drop PHP & Symfony EOL versions & fix Symfony 5.2 & PHP 8 build (ogizanagi)
[fc6c4b2] feature #114 [Validator] Allow to use Enum constraint with PHP8 attributes (ogizanagi)
[a7f1003] minor #115 Run & fix inspections (ogizanagi)
[f7badd1] feature #113 Expose Enum static methods to Twig (Tom32i, ogizanagi)