make sure that copied scripts in `init/` and `scripts/` use right EESSI version #26

Job	Run time
eessi_container_script (listrepos_default)	35s
eessi_container_script (help)	27s
eessi_container_script (listrepos_custom)	34s
eessi_container_script (run)	1m 22s
eessi_container_script (shell)	1m 18s
eessi_container_script (container)	1m 21s
eessi_container_script (resume)	1m 19s
	6m 56s

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