removed -e from `docker login`. no longer doing `docker login` when running for a PR.
removed -e from `docker login`.
no longer doing `docker login` when running for a PR.

CounterpartyXCP/counterparty-lib,F483/counterparty-lib,F483/counterparty-lib,CounterpartyXCP/counterparty-lib,monaparty/counterparty-lib,monaparty/counterparty-lib