Upgrade scheb/two-factor-bundle to fix vulnerability

The bundle was locked to a version which contains a security bug.
Jumping to the most recent fix the issue.

But we'll have the `ListenerInterface` issue, again.
So, downgrading sentry-symfony instead.

See 0cf743f6fb

composer.json

@@ -80,10 +80,10 @@
         "php-http/httplug-bundle": "^1.14",
         "pragmarx/recovery": "^0.1.0",
         "predis/predis": "v1.1.x-dev",
-        "scheb/two-factor-bundle": "4.5.0",
+        "scheb/two-factor-bundle": "^4.11.0",
         "sensio/distribution-bundle": "^5.0",
         "sensio/framework-extra-bundle": "^5.2",
-        "sentry/sentry-symfony": "^3.0",
+        "sentry/sentry-symfony": "3.2.1",
         "stof/doctrine-extensions-bundle": "^1.2",
         "symfony/dom-crawler": "^3.4",
         "symfony/monolog-bundle": "^3.1",