Release v4.5.0 - Support for Symfony 8.0 and PHP8.4

This release adds support for Symfony 8.0 without breaking support for releases 6.4 and 7.4. Intermediate releases from previous major versions (6.0-6.3 and 7.0-7.3) are no longer explicitly tested for.

Full Changelog: v4.4.0...v4.5.0