chore: support symfony/yaml v7

Signed-off-by: Jack Cherng <jfcherng@gmail.com>

Author: jfcherng

composer.json

@@ -30,7 +30,7 @@
         "php": ">=8.0.2",
         "nicmart/string-template": "~0.1.3",
         "spatie/array-to-xml": "^3",
-        "symfony/yaml": "^5 || ^6"
+        "symfony/yaml": "^5 || ^6 || ^7"
     },
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^3",