MQE-841: robo generate:tests --force should not require MAGENTO_BASE_URL

- missed $ENV to getenv() fix.

Author: KevinBKozan

src/Magento/FunctionalTestingFramework/Util/ModuleResolver.php

@@ -322,7 +322,7 @@ private function getEnabledDirectoryPaths($enabledModules, $allModulePaths)
  */
  private function printMagentoVersionInfo()
  {
- $url = ConfigSanitizerUtil::sanitizeUrl($_ENV['MAGENTO_BASE_URL']) . $this->versionUrl;
+ $url = ConfigSanitizerUtil::sanitizeUrl(getenv('MAGENTO_BASE_URL')) . $this->versionUrl;
  print "Fetching version information from {$url}";
  $ch = curl_init($url);
  curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "GET");