fix netconf compilation
simple_parser.lo
netconf_cfg_mgr.cc:168:1: error: no declaration matches ‘std::__cxx11::list<std::__cxx11::list<std::__cxx11::basic_string<char> > > isc::netconf::NetconfCfgMgr::jsonPathsToRedact() const’
168 | NetconfCfgMgr::jsonPathsToRedact() const {