fix cdata steps (via #63)

Author: Artem Eroshenko

composer.json

@@ -18,7 +18,7 @@
     "require": {
 	    "php": ">=5.6",
         "codeception/codeception": "^2.3|^3.0|^4.0",
-        "allure-framework/allure-php-api": "~1.1.8",
+        "allure-framework/allure-php-api": "~1.2.1",
         "symfony/filesystem": ">=2.6",
         "symfony/finder": ">=2.6"
     },