Man pages matching name net::upnp::http in section 3pm:

Net::UPnP::HTTP.3pm.en	debian 10 / libnet-upnp-perl
Net::UPnP::HTTP.3pm.en	debian 11 / libnet-upnp-perl
Net::UPnP::HTTP.3pm.en	debian 12 / libnet-upnp-perl