make sure that copied scripts in `init/` and `scripts/` use right EESSI version #30

Job	Run time
eessi_container_script (help)	28s
eessi_container_script (listrepos_default)	1m 0s
eessi_container_script (listrepos_custom)	35s
eessi_container_script (shell)	1m 31s
eessi_container_script (run)	3m 9s
eessi_container_script (resume)	1m 46s
eessi_container_script (container)	1m 23s
	9m 52s

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