On Windows, AgentClient::connect_env always returns AgentFailure. This is an auth_agent failure, but shouldn't stop us from trying auth_pk or auth_password.

Created by  Altafen  on September 7, 2021
3U2ETQIWK3YTRVK67NCI2L4NREHHATGO3H7BS73RFR4NOIZNKXXQC
Change contents