Update Symfony dependencies to latest version

Author: driesvints

composer.json

@@ -19,8 +19,8 @@
         "mockery/mockery": "^1.0",
         "phpunit/phpunit": "^7.0|^8.0",
         "symfony/console": "^4.2",
-        "symfony/css-selector": "~4.0",
-        "symfony/dom-crawler": "~4.0",
+        "symfony/css-selector": "^4.2",
+        "symfony/dom-crawler": "^4.2",
         "symfony/http-foundation": "^4.2",
         "symfony/http-kernel": "^4.2"
     },