ignore test failure for LAMMPS 22Jul2025 on Aarch64 generic #881

Job	Run time
eessi_container_script (no_cvmfs_mounts)	2m 26s
eessi_container_script (resume)	2m 28s
eessi_container_script (run)	2m 27s
eessi_container_script (unionfs)	2m 51s
eessi_container_script (container)	2m 7s
eessi_container_script (exec)	2m 37s
eessi_container_script (help)	1m 32s
eessi_container_script (listrepos_custom)	1m 36s
eessi_container_script (shell)	2m 28s
eessi_container_script (listrepos_default)	1m 27s
	21m 59s

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