ftp_version: Make sure to disconnect

Author: g0tmi1k

modules/auxiliary/scanner/ftp/ftp_version.rb

@@ -57,8 +57,6 @@ def run_host(_target_host)
         data: { banner: banner.strip }
       )
     end
-
-    disconnect
   rescue ::Rex::ConnectionRefused
     vprint_error('Connection refused')
     report_host(host: rhost)
@@ -67,5 +65,7 @@ def run_host(_target_host)
     report_host(host: rhost)
   rescue ::Interrupt
     raise $ERROR_INFO
+  ensure
+    disconnect
   end
 end