MQE-1597: MFTF 2.4.0 and above has incompatible dependencies with msp/twofactorauth

updated composer.json and .lock to fix packaging issues

Author: soumyau

composer.json

@@ -14,7 +14,6 @@
         "ext-curl": "*",
         "codeception/codeception": "~2.3.4 || ~2.4.0 ",
         "consolidation/robo": "^1.0.0",
-        "epfremme/swagger-php": "^2.0",
         "flow/jsonpath": ">0.2",
         "fzaninotto/faker": "^1.6",
         "monolog/monolog": "^1.0",
@@ -36,6 +35,9 @@
         "php-coveralls/php-coveralls": "^1.0",
         "symfony/stopwatch": "~3.4.6"
     },
+    "suggest": {
+        "epfremme/swagger-php": "^2.0"
+    },
     "autoload": {
         "files": ["src/Magento/FunctionalTestingFramework/_bootstrap.php"],
         "psr-4": {