Fix wrong message shown when upload to SUBNET fails (#5005)

When upload of the inspect file to SUBNET fails, following wrong message
was getting printed:

`Object inspection data for '' uploaded to SUBNET successfully`

Fixed the if condition to ensure that following correct message is
printed:

`File data successfully downloaded as <filename>`

cmd/support-inspect.go

@@ -90,7 +90,7 @@ type inspectMessage struct {
 // Colorized message for console printing.
 func (t inspectMessage) String() string {
  var msg string
- if globalAirgapped {
+ if globalAirgapped || t.File != "" {
  if t.Key == "" {
  msg = fmt.Sprintf("File data successfully downloaded as %s", console.Colorize("File", t.File))
  } else {