Unallow symfony/http-kernel ^5.0

Author: fancyweb

composer.json

@@ -31,7 +31,7 @@
         "php-http/httplug": "^1.0|^2.0",
         "psr/http-client": "^1.0",
         "symfony/dependency-injection": "^4.3|^5.0",
-        "symfony/http-kernel": "^4.3|^5.0",
+        "symfony/http-kernel": "^4.3",
         "symfony/process": "^4.2|^5.0",
         "symfony/service-contracts": "^1.0|^2",
         "symfony/var-dumper": "^4.3|^5.0"