make sure that copied scripts in `init/` and `scripts/` use right EESSI version #23

Job	Run time
lmod_and_init_script_comparison (2023.06, x86_64/amd/zen4, accel/nvidia/cc80)	59s
lmod_and_init_script_comparison (2023.06, x86_64/amd/zen3, accel/nvidia/cc80)	29s
basic_checks (2023.06)	59s
make_sure_load_and_unload_work (2023.06, none, accel/nvidia/cc80)	39s
make_sure_load_and_unload_work (2023.06, none, none)	1m 35s
make_sure_load_and_unload_work (2023.06, x86_64/amd/zen2, none)	41s
make_sure_load_and_unload_work (2023.06, x86_64/amd/zen2, accel/nvidia/cc80)	38s
make_sure_load_and_unload_work (2023.06, x86_64/amd/zen4, none)	36s
make_sure_load_and_unload_work (2023.06, x86_64/amd/zen4, accel/nvidia/cc80)	33s
	7m 9s

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