Update symfony/event-dispatcher requirement from 3.4.2 to 5.4.17

[dependabot]

Updates the requirements on symfony/event-dispatcher to permit the latest version.

Release notes

Sourced from symfony/event-dispatcher's releases.

v5.4.17

Changelog (symfony/event-dispatcher@v5.4.16...v5.4.17)

• bug #48615 Fix getting the name of closures on PHP 8.1.11+ (nicolas-grekas)

Changelog

Sourced from symfony/event-dispatcher's changelog.

CHANGELOG

6.0

• Remove LegacyEventDispatcherProxy

5.4

• Allow #[AsEventListener] attribute on methods

5.3

• Add #[AsEventListener] attribute for declaring listeners on PHP 8

5.1.0

• The LegacyEventDispatcherProxy class has been deprecated.
• Added an optional dispatcher attribute to the listener and subscriber tags in RegisterListenerPass.

5.0.0

• The signature of the EventDispatcherInterface::dispatch() method has been changed to dispatch($event, string $eventName = null): object.
• The Event class has been removed in favor of Symfony\Contracts\EventDispatcher\Event.
• The TraceableEventDispatcherInterface has been removed.
• The WrappedListener class is now final.

4.4.0

• AddEventAliasesPass has been added, allowing applications and bundles to extend the event alias mapping used by RegisterListenersPass.
• Made the event attribute of the kernel.event_listener tag optional for FQCN events.

4.3.0

• The signature of the EventDispatcherInterface::dispatch() method should be updated to dispatch($event, string $eventName = null), not doing so is deprecated
• deprecated the Event class, use Symfony\Contracts\EventDispatcher\Event instead

4.1.0

• added support for invokable event listeners tagged with kernel.event_listener by default
• The TraceableEventDispatcher::getOrphanedEvents() method has been added.
• The TraceableEventDispatcherInterface has been deprecated.

... (truncated)

Commits

• 8e18a9d Fix getting the name of closures on PHP 8.1.11+
• 8e6ce1c Merge branch '4.4' into 5.4
• 708e761 [EventDispatcher] Fix removing listeners when using first-class callable syntax
• dec8a9f Merge branch '5.3' into 5.4
• 6dc2d5b Merge branch '4.4' into 5.3
• 3ccfcfb Bump license year
• 27d39ae Allow v3 contracts where possible
• 9748a8d Merge branch '5.3' into 5.4
• 661a7a6 Merge branch '4.4' into 5.3
• 1a024b4 Never rely on dynamic properties
• Additional commits viewable in compare view

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