Bump Behatch requirement

Author: antograssiot

composer.json

@@ -29,7 +29,7 @@
         "behat/mink-browserkit-driver": "^1.3.1",
         "behat/mink-extension": "^2.2",
         "behat/symfony2-extension": "^2.1",
-        "behatch/contexts": "^2.5",
+        "behatch/contexts": "^2.6",
         "doctrine/doctrine-bundle": "^1.6.3",
         "doctrine/orm": "^2.5",
         "doctrine/annotations": "^1.2",