fix(deps): update dependency symfony/flex to v1.14.0

This MR contains the following updates:

Package	Type	Update	Change
symfony/flex	require	minor	1.13.4 -> 1.14.0

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Release Notes

symfony/flex

v1.14.0

Compare Source

Fix #​654

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config/bundles.php

 <?php
 
+declare(strict_types=1);
+
 return [
     Symfony\Bundle\FrameworkBundle\FrameworkBundle::class => ['all' => true],
     Symfony\Bundle\TwigBundle\TwigBundle::class => ['all' => true],