Fix issue with page size

Author: okolesnyk

composer.json

@@ -11,7 +11,7 @@
     "require": {
         "php": "7.0.2|7.0.4|~7.0.6|~7.1.0|~7.2.0",
         "allure-framework/allure-codeception": "~1.2.6",
-        "codeception/codeception": "~2.3.4",
+        "codeception/codeception": "2.3.4",
         "consolidation/robo": "^1.0.0",
         "epfremme/swagger-php": "^2.0",
         "flow/jsonpath": ">0.2",