feature #100 Allow Symfony 6 (chalasr)

This PR was merged into the 2.1-dev branch.

Discussion
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Allow Symfony 6

Commits
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c7a0be3 Allow Symfony 6

Author: chalasr

composer.json

@@ -18,15 +18,15 @@
     "require": {
         "php": ">=7.1",
         "psr/http-message": "^1.0",
-        "symfony/http-foundation": "^4.4 || ^5.0"
+        "symfony/http-foundation": "^4.4 || ^5.0 || ^6.0"
     },
     "require-dev": {
-        "symfony/browser-kit": "^4.4 || ^5.0",
-        "symfony/config": "^4.4 || ^5.0",
-        "symfony/event-dispatcher": "^4.4 || ^5.0",
-        "symfony/framework-bundle": "^4.4 || ^5.0",
-        "symfony/http-kernel": "^4.4 || ^5.0",
-        "symfony/phpunit-bridge": "^5.4@dev",
+        "symfony/browser-kit": "^4.4 || ^5.0 || ^6.0",
+        "symfony/config": "^4.4 || ^5.0 || ^6.0",
+        "symfony/event-dispatcher": "^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/phpunit-bridge": "^5.4@dev || ^6.0",
         "nyholm/psr7": "^1.1",
         "psr/log": "^1.1 || ^2 || ^3"
     },