Changelog (https://github.com/symfony/symfony/compare/v6.4.21...v6.4.22)

• bug #60549 [Translation] Add intl-icu fallback for MessageCatalogue metadata (@pontus-mp)
• bug #60571 [ErrorHandler] Do not transform file to link if it does not exist (@lyrixx)
• bug #60494 [Messenger] fix: Add argument as integer (@overexpOG)
• bug #60524 [Notifier] Fix Clicksend transport (@BafS)
• bug #60478 [Validator] add missing $extensions and $extensionsMessage to the Image constraint (@xabbuh)
• bug #60423 [DependencyInjection] Make DefinitionErrorExceptionPass consider IGNORE_ON_UNINITIALIZED_REFERENCE and RUNTIME_EXCEPTION_ON_INVALID_REFERENCE the same (@MatTheCat)
• bug #60421 [VarExporter] Fixed lazy-loading ghost objects generation with property hooks (@cheack)
• bug #60266 [Security] Exclude remember_me from default login authenticators (@santysisi)
• bug #60400 [Config] Fix generated comment for multiline "info" (@GromNaN)
• bug #60260 [Serializer] Prevent Cannot traverse an already closed generator error by materializing Traversable input (@santysisi)
• bug #60292 [HttpFoundation] Encode path in X-Accel-Redirect header (@Athorcis)
• bug #60379 [Security] Avoid failing when PersistentRememberMeHandler handles a malformed cookie (@Seldaek)
• bug #60373 [FrameworkBundle] Ensure Email class exists before using it (@Kocal)
• bug #60365 [FrameworkBundle] ensure that all supported e-mail validation modes can be configured (@xabbuh)
• bug #60350 [Security][LoginLink] Throw InvalidLoginLinkException on invalid parameters (@davidszkiba)
• bug #60340 [String] fix EmojiTransliterator return type compatibility with PHP 8.5 (@xabbuh)

[PR] https://github.com/symfony/symfony/pull/60576