MQE-974: Change folder name from MFTF to Mftf

- MFTF => Mftf

Author: KevinBKozan

src/Magento/FunctionalTestingFramework/Util/ModuleResolver.php

@@ -237,8 +237,8 @@ private function aggregateTestModulePaths()
 
         $codePathsToPattern = [
             $modulePath => '',
-            $appCodePath => '/Test/MFTF',
-            $vendorCodePath => '/Test/MFTF'
+            $appCodePath => '/Test/Mftf',
+            $vendorCodePath => '/Test/Mftf'
         ];
 
         foreach ($codePathsToPattern as $codePath => $pattern) {