Use Symfony 5.4

composer.json

@@ -29,24 +29,24 @@
         "netcarver/textile": "^3.6",
         "react/http": "^1.0",
         "sculpin/sculpin-theme-composer-plugin": "^1.0",
-        "symfony/config": "^4.4.13",
-        "symfony/console": "^4.4.13",
-        "symfony/dependency-injection": "^4.4.13",
-        "symfony/event-dispatcher": "^4.4.13",
-        "symfony/filesystem": "^4.4.13",
-        "symfony/finder": "^4.4.13",
-        "symfony/http-kernel": "^4.4.13",
-        "symfony/yaml": "^4.4.13",
+        "symfony/config": "^v5.4",
+        "symfony/console": "^v5.4",
+        "symfony/dependency-injection": "^v5.4",
+        "symfony/event-dispatcher": "^v5.4",
+        "symfony/filesystem": "^v5.4",
+        "symfony/finder": "^v5.4",
+        "symfony/http-kernel": "^v5.4",
+        "symfony/yaml": "^v5.4",
         "twig/twig": "^3.0",
         "webignition/internet-media-type": "^0.4.8"
     },
     "require-dev": {
         "phpdocumentor/reflection-docblock": "^5.2",
         "phpunit/phpunit": "^9.4",
         "squizlabs/php_codesniffer": "^3.3",
-        "symfony/css-selector": "^4.1",
-        "symfony/dom-crawler": "^4.1",
-        "symfony/process": "^4.1",
+        "symfony/css-selector": "^v5.4",
+        "symfony/dom-crawler": "^v5.4",
+        "symfony/process": "^v5.4",
         "phpstan/phpstan": "^1.2"
     },
     "suggest": {