bug #506 [Live] remove calls to Request::get() (kbond)

This PR was merged into the 2.x branch.

Discussion
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[Live] remove calls to `Request::get()`

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| Tickets       | n/a
| License       | MIT

`Request::get()` is marked as ``@internal``.

Commits
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4c89185 [Live] remove calls to `Request::get()`

Author: weaverryan

src/LiveComponent/src/EventListener/LiveComponentSubscriber.php

@@ -74,8 +74,8 @@ public function onKernelRequest(RequestEvent $event): void
         }
 
         // the default "action" is get, which does nothing
-        $action = $request->get('action', 'get');
-        $componentName = (string) $request->get('component');
+        $action = $request->attributes->get('action', 'get');
+        $componentName = (string) $request->attributes->get('component');
 
         $request->attributes->set('_component_name', $componentName);