v8.0.0-BETA1

Changelog (v7.3.4...v8.0.0-BETA1)

• feature symfony/symfony#61880 [JsonStreamer] Merge PropertyMetadata value transformers (@mtarld)
• feature symfony/symfony#62069 [JsonStreamer] Add synthetic properties support (@mtarld)
• feature symfony/symfony#61578 [DependencyInjection] Parse attributes found on abstract classes for resource definitions (@nicolas-grekas)
• feature symfony/symfony#61500 [JsonPath][JsonStreamer][ObjectMapper] the components are no longer experimental (@xabbuh)
• feature symfony/symfony#60730 [JsonStreamer] Add include_null_properties option (@mtarld)
• feature symfony/symfony#61006 [JsonStreamer] Provide current object to value transformers (@mtarld)
• feature symfony/symfony#60731 [JsonStreamer] Add PHPDoc to generated code (@mtarld)
• feature symfony/symfony#60716 [VarExporter] Remove LazyGhostTrait and LazyProxyTrait in favor of native lazy objects (@nicolas-grekas)
• feature symfony/symfony#60639 Bump Symfony 8 to PHP >= 8.4 (@nicolas-grekas)
• feature symfony/symfony#60544 [JsonStreamer] Remove nikic/php-parser dependency (@mtarld)