feat: add symfo54-backward-compatibility

Author: Orann

composer.json

@@ -18,19 +18,19 @@
     "require": {
         "php": ">=8.0",
         "ext-json": "*",
-        "symfony/config": "^6.0",
-        "symfony/dependency-injection": "^6.0",
-        "symfony/event-dispatcher": "^6.0",
-        "symfony/http-foundation": "^6.0",
-        "symfony/http-kernel": "^6.0",
-        "symfony/options-resolver": "^6.0"
+        "symfony/config": "^5.4 || ^6.0",
+        "symfony/dependency-injection": "^5.4 || ^6.0",
+        "symfony/event-dispatcher": "^5.4 || ^6.0",
+        "symfony/http-foundation": "^5.4 || ^6.0",
+        "symfony/http-kernel": "^5.4 || ^6.0",
+        "symfony/options-resolver": "^5.4 || ^6.0"
     },
     "require-dev": {
         "phpunit/phpunit": "9.5.*",
         "m6web/php-cs-fixer-config": "^2.1",
         "phpstan/phpstan": "^1.5",
         "phpstan/phpstan-phpunit": "^1.1",
-        "symfony/var-dumper": "^6.0",
+        "symfony/var-dumper": "^5.4 || ^6.0",
         "rector/rector": "^0.12.22"
     },
     "suggest": {