Added docker-cli package to kustomize_build fn (#106)
Added docker-cli package to kustomize_build fn (#106)

kustomize build command may work with kpt-function
based plugins, but in order to make it work
kustomize_build function must contain docker-cli
to be able to run docker in docker.

E2e test scenario makes sure this case works
GoogleContainerTools/kpt-functions-catalog,GoogleContainerTools/kpt-functions-catalog,GoogleContainerTools/kpt-functions-catalog,GoogleContainerTools/kpt-functions-catalog,GoogleContainerTools/kpt-functions-catalog