Update composer.lock and reference files for Symfony packages

- Updated Symfony packages to version 7.4.14 and 8.1.1, including `symfony/cache`, `symfony/config`, `symfony/console`, and `symfony/dependency-injection`.
- Adjusted references in `composer.lock` to point to the latest commits for each package.
- Modified `reference.php` files to change the type of `_instanceof` to an array of class strings, enhancing type safety.
- Resolved merge conflicts in `composer.lock` for the doctrine-encrypt-bundle reference.

Author: HecFranco