Allow higher Symfony versions

composer.json

@@ -17,26 +17,26 @@
         "martin1982/facebook-graph-sdk": "^7.0.1",
         "google/apiclient-services": "~0.157",
         "google/apiclient": "^2.7",
-        "psr/log": "^1.1",
+        "psr/log": "^1.1|^2.0|^3.0",
         "react/event-loop": "^1.1",
-        "symfony/console": "^4.4|^5.0",
-        "symfony/framework-bundle": "^4.4|^5.0",
-        "symfony/http-kernel": "^4.4|^5.0",
+        "symfony/console": "^4.4|^5.0|^6.0",
+        "symfony/framework-bundle": "^4.4|^5.0|^6.0",
+        "symfony/http-kernel": "^4.4|^5.0|^6.0",
         "symfony/monolog-bundle": "^3.5",
-        "symfony/validator": "^4.4|^5.0",
-        "symfony/yaml": "^4.4|^5.0",
-        "symfony/messenger": "^4.4|^5.0",
-        "friendsofphp/php-cs-fixer": "^3.0"
+        "symfony/validator": "^4.4|^5.0|^6.0",
+        "symfony/yaml": "^4.4|^5.0|^6.0",
+        "symfony/messenger": "^4.4|^5.0|^6.0"
     },
     "require-dev": {
         "roave/security-advisories": "dev-master",
         "doctrine/doctrine-migrations-bundle": "^2.1|^3.0",
         "escapestudios/symfony2-coding-standard": "^3.1",
+        "friendsofphp/php-cs-fixer": "^2.16|^3.6",
         "guzzlehttp/guzzle": "^7.0",
         "php-mock/php-mock-phpunit": "^2.6",
         "phpunit/phpunit": "^9.1",
         "squizlabs/php_codesniffer": "^3.5",
-        "phpmd/phpmd": "^2.8"
+        "phpmd/phpmd": "^2.8|dev-master"
     },
     "suggest": {
         "doctrine/doctrine-migrations-bundle": "Keep track of updated entities in your database"