Test fix for only uploading one tarball for multiple GPU targets #306

Job	Run time
eessi_container_script (unionfs)	3m 5s
eessi_container_script (container)	3m 42s
eessi_container_script (shell)	2m 51s
eessi_container_script (resume)	3m 13s
eessi_container_script (help)	3m 15s
eessi_container_script (listrepos_default)	2m 19s
eessi_container_script (run)	2m 57s
eessi_container_script (listrepos_custom)	1m 19s
	22m 41s

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