Fix reference to deploy file path

bin/dep

@@ -105,7 +105,7 @@ $deployer = new \Deployer\Deployer($console, $input, $output);
 // Require deploy.php file
 if (is_readable($deployFile)) {
     // Prevent variable leak into deploy.php file
-    call_user_func(function() {
+    call_user_func(function() use ($deployFile) {
         require $deployFile;
     });
 }