composer update

vendor/symfony/debug/Exception/SilencedErrorContext.php

@@ -11,10 +11,14 @@
 
 namespace Symfony\Component\Debug\Exception;
 
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', SilencedErrorContext::class, \Symfony\Component\ErrorHandler\Exception\SilencedErrorContext::class), E_USER_DEPRECATED);
+
 /**
  * Data Object that represents a Silenced Error.
  *
  * @author Grégoire Pineau <lyrixx@lyrixx.info>
+ *
+ * @deprecated since Symfony 4.4, use Symfony\Component\ErrorHandler\Exception\SilencedErrorContext instead.
  */
 class SilencedErrorContext implements \JsonSerializable
 {
@@ -54,7 +58,7 @@ class SilencedErrorContext implements \JsonSerializable
         return $this->trace;
     }
 
-    public function JsonSerialize()
+    public function jsonSerialize()
     {
         return [
             'severity' => $this->severity,