Only use supported versions of symfony (#124)

* Only use supported versions of symfony

* Update chnagelog

Author: Nyholm

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Changelog
 
+## v4.1.0
+
+- Support for Symfony 5. 
+
 ## v4.0.0
 
 - Added support for PHPUnit 8.0

composer.json

@@ -15,9 +15,9 @@
     "require": {
         "php": "^7.2",
         "matthiasnoback/symfony-config-test": "^4.0.1",
-        "symfony/dependency-injection": "^3.4 || ^4.0 || ^5.0",
-        "symfony/config": "^3.4 || ^4.0 || ^5.0",
-        "symfony/yaml": "^3.4 || ^4.0 || ^5.0"
+        "symfony/dependency-injection": "^3.4 || ^4.4 || ^5.0",
+        "symfony/config": "^3.4 || ^4.4 || ^5.0",
+        "symfony/yaml": "^3.4 || ^4.4 || ^5.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^8.0"