smb/kio_smb_browse: Check error code `EINVAL` to prompt the password dialog

With `samba-libs` >= 4.16, when user connect to the windows file sharing with incorrect user credential, the error code is `EINVAL`.

The user should get the password dialog to enter username and password if the error code is `EINVAL`.

Reference URL:
https://bugzilla.samba.org/show_bug.cgi?id=14983
https://gitlab.gnome.org/GNOME/gvfs/-/issues/611

BUG: 453090