Fixed auth callback name typo
Fixed auth callback name typo

mikefero/cpp-driver,hpcc-systems/cpp-driver,hpcc-systems/cpp-driver,mikefero/cpp-driver,hpcc-systems/cpp-driver,datastax/cpp-driver,datastax/cpp-driver,mikefero/cpp-driver,mikefero/cpp-driver,datastax/cpp-driver,datastax/cpp-driver,mikefero/cpp-driver,hpcc-systems/cpp-driver