fix(state): correct composer "conflicts" key to "conflict" (#8400)
Dependencies
Require symfony/*^7.4 || ^8.0 across all components; drop support for Symfony 6.4 and 7.0–7.3 (#8397)
Stabilized formerly @experimental APIs (Elasticsearch, State parameter providers, PropertyAwareFilterInterface, Laravel ParameterValidatorProvider); @experimental now kept only on MCP (#8398)