Capture stdout from node:slim docker pull so it doesn't contaminate the final output.
Capture stdout from node:slim docker pull so it doesn't contaminate the final
output.

chapmanb/cwltool,common-workflow-language/cwltool,dleehr/cwltool,SciDAP/cwltool,jeremiahsavage/cwltool,chapmanb/cwltool,chapmanb/cwltool,SciDAP/cwltool,jeremiahsavage/cwltool,SciDAP/cwltool,dleehr/cwltool,common-workflow-language/cwltool,jeremiahsavage/cwltool,SciDAP/cwltool,chapmanb/cwltool,common-workflow-language/cwltool,jeremiahsavage/cwltool,dleehr/cwltool,dleehr/cwltool