Allow to use newet symfony/yaml

[Pavel-NPART]

Loading composer repositories with package information
Updating dependencies
Your requirements could not be resolved to an installable set of packages.

- Root composer.json requires cebe/php-openapi ^1.8 -> satisfiable by cebe/php-openapi[1.8.0].
- cebe/php-openapi 1.8.0 requires symfony/yaml ^3.4 || ^4 || ^5 || ^6 || ^7.0 -> found symfony/yaml[v3.4.0, ..., v3.4.47, v4.0.0, ..., v4.4.45, v5.0.0, ..., v5.4.45, v6.0.0, ..., v6.4.39, v7.0.0, ..., v7.4.11] but it conflicts with your root composer.json require (^8.0).

Please update composer.json to use newest symfony/yaml lib