add CI jobs for Symfony 6.3

Author: xabbuh

.github/workflows/ci.yaml

@@ -98,9 +98,15 @@ jobs:
           - php-version: '8.1'
             composer-options: '--prefer-stable'
             symfony-version: '5.4.*'
+          - php-version: '8.1'
+            composer-options: '--prefer-stable'
+            symfony-version: '6.3.*'
           - php-version: '8.2'
             composer-options: '--prefer-stable'
             symfony-version: '5.4.*'
+          - php-version: '8.2'
+            composer-options: '--prefer-stable'
+            symfony-version: '6.3.*'
 
     steps:
       - name: 'Check out'

tests/Fixtures/Form/CancelSubscriptionType.php

@@ -26,7 +26,7 @@ class CancelSubscriptionType extends AbstractType
     public function buildForm(FormBuilderInterface $builder, array $options): void
     {
         $builder
-            ->add('cancellation_date', DateType::class, $options['cancellation_date_options'])
+            ->add('cancellation_date', DateType::class, $options['cancellation_date_options'] + ['widget' => 'choice'])
         ;
     }