Changelog (v8.0.0-RC1...v8.0.0-RC2)

• bug [HttpKernel] Conflict with symfony/flex < 2.10 #62411 [HttpKernel] Conflict with symfony/flex < 2.10 (@nicolas-grekas)
• bug [Yaml] Align unquoted multiline scalar parsing with spec for comments #62409 [Yaml] Align unquoted multiline scalar parsing with spec for comments (@yoeunes)
• bug [Cache] Fix accepting named closures as early-expiration callbacks #62398 [Cache] Fix accepting named closures as early-expiration callbacks (@nicolas-grekas)
• bug [Notifier] do not use recipient phone numbers as sender e-mail addresses #62406 [Notifier] do not use recipient phone numbers as sender e-mail addresses (@xabbuh)
• bug [FrameworkBundle] work around limitation in JsonResponse when the data is null #62407 [FrameworkBundle] work around limitation in JsonResponse when the data is null (@xabbuh)
• bug [FrameworkBundle] Revert auto-import of #[Route] defined on controllers #62402 [FrameworkBundle] Revert auto-import of #[Route] defined on controllers (@nicolas-grekas)
• bug [Form] Fix EnumType choice_label logic for grouped choices #62400 [Form] Fix EnumType choice_label logic for grouped choices (@yoeunes)
• bug [Security] Set OIDC JWKS cache TTL from provider headers #62369 [Security] Set OIDC JWKS cache TTL from provider headers (@Ali-HENDA)
• bug [DependencyInjection] Call default index method when index is not provided by tag #62393 [Dependencyinjection] Call default index method when index is not provided by tag (@yoeunes)
• bug [Cache] Recognize saveDeferred events as writes in CacheDataCollector #62372 [Cache] Recognize saveDeferred events as writes in CacheDataCollector (@yitznewton)
• bug [Routing] Align routing.schema.json with YamlFileLoader behavior #62389 [Routing] Align routing.schema.json with YamlFileLoader behavior (@yoeunes)