MC-38123: Update Symfony dependencies for compatibility with Magento 2.4 OnPrem (#1)

Author: viktym

composer.json

@@ -9,11 +9,11 @@
         "ext-json": "*",
         "composer/composer": "@stable",
         "composer/semver": "^1.5",
-        "symfony/config": "^3.3||^4.4",
+        "symfony/config": "^3.3||^4.4||^5.1",
         "symfony/console": "^2.6||^4.0",
-        "symfony/dependency-injection": "^3.3||^4.3",
+        "symfony/dependency-injection": "^3.3||^4.3||^5.1",
         "symfony/process": "^2.1||^4.1",
-        "symfony/proxy-manager-bridge": "^3.3||^4.3",
+        "symfony/proxy-manager-bridge": "^3.3||^4.3||^5.1",
         "symfony/yaml": "^3.3||^4.0",
         "monolog/monolog": "^1.16"
     },