Drop Symfony < 5.1 🔥

Author: andrewmy

composer.json

@@ -9,16 +9,16 @@
         "php": "^7.3|^8.0",
         "queue-interop/queue-interop": "^0.8",
         "enqueue/dsn": "^0.10",
-        "symfony/filesystem": "^4.3|^5|^6.0",
+        "symfony/filesystem": "^5.1|^6.0",
         "makasim/temp-file": "^0.2@stable"
     },
     "require-dev": {
         "phpunit/phpunit": "^9.5",
         "enqueue/null": "0.10.x-dev",
         "enqueue/test": "0.10.x-dev",
         "queue-interop/queue-spec": "^0.6.2",
-        "symfony/dependency-injection": "^4.3|^5|^6.0",
-        "symfony/yaml": "^4.3|^5|^6.0"
+        "symfony/dependency-injection": "^5.1|^6.0",
+        "symfony/yaml": "^5.1|^6.0"
     },
     "support": {
         "email": "[email protected]",