[Composer] Bumped Symfony packages requirements to ^6.4

composer.json

@@ -26,20 +26,20 @@
         "ibexa/core": "dev-ibx-8470-symfony-6 as 5.0.x-dev",
         "ibexa/notifications": "dev-ibx-8470-symfony-6 as 5.0.x-dev",
         "jms/translation-bundle": "^1.5",
-        "symfony/config": "^5.0",
-        "symfony/dependency-injection": "^5.0",
-        "symfony/event-dispatcher": "^5.0",
-        "symfony/form": "^5.0",
-        "symfony/http-foundation": "^5.0",
-        "symfony/http-kernel": "^5.0",
-        "symfony/intl": "^5.0",
-        "symfony/options-resolver": "^5.0",
-        "symfony/routing": "^5.0",
-        "symfony/security-core": "^5.0",
-        "symfony/security-http": "^5.0",
-        "symfony/swiftmailer-bundle": "^3.4",
-        "symfony/translation": "^5.0",
-        "symfony/validator": "^5.0",
+        "symfony/config": "^6.4",
+        "symfony/dependency-injection": "^6.4",
+        "symfony/event-dispatcher": "^6.4",
+        "symfony/form": "^6.4",
+        "symfony/http-foundation": "^6.4",
+        "symfony/http-kernel": "^6.4",
+        "symfony/intl": "^6.4",
+        "symfony/options-resolver": "^6.4",
+        "symfony/routing": "^6.4",
+        "symfony/security-core": "^6.4",
+        "symfony/security-http": "^6.4",
+        "symfony/swiftmailer-bundle": "^6.4",
+        "symfony/translation": "^6.4",
+        "symfony/validator": "^6.4",
         "twig/twig": "^3.0"
     },
     "require-dev": {
@@ -56,8 +56,8 @@
         "phpstan/phpstan-phpunit": "^1.3",
         "phpstan/phpstan-symfony": "^1.3",
         "phpunit/phpunit": "^9.6",
-        "symfony/phpunit-bridge": "^5.3",
-        "symfony/proxy-manager-bridge": "^5.0"
+        "symfony/phpunit-bridge": "^6.4",
+        "symfony/proxy-manager-bridge": "^6.4"
     },
     "scripts": {
         "fix-cs": "php-cs-fixer fix --config=.php-cs-fixer.php -v --show-progress=dots",