mod_oidc_userinfo_vcard4: Unpack <vcard> from PubSub <item> Forgot about the <item>, so it was previously attempting to extract all properties from that instead of the inner <vcard>

This module produces more detailed HTTP logs for Prosodys built-in HTTP
server. The format is similar to that of Apache and go into Prosodys
normal logs at the `info` level.