[27.x backport] cli/command/container: set empty args in tests and discard output#5564

thaJeztah merged 2 commits intodocker:27.xdocker/cli:27.xfrom

austinvazquez:cherry-pick-35d7b1a7a6426080f44e044b6564cee990b35eab-to-27.xaustinvazquez/docker-cli:cherry-pick-35d7b1a7a6426080f44e044b6564cee990b35eab-to-27.xCopy head branch name to clipboard