Executes each command listed in the Action's args via bash -c.
action "Setup" { uses = "jdickey/bash@master" args = ["cat <<<$MY_VAR > file.csv"] }
Based on jcblw/bash; the only difference is that he read argument values using "$@" rather than "$*". Using his original, multi-word commands such as docker-compose exec web bin/rake would need to be surrounded by quotes ('docker-compose exec web bin/rake').