Test don't run on architectures other than x86_64 #610
Description
I'm getting this from 04-runtime on aarch64 & ppc64le:
#/vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
#| FAIL: 'hello from busybox' found in the log
#| expected: =~ hello from busybox
#| actual: 2025-10-01T10:25:54.025335792-04:00 stderr F exec container process \`/busybox\`: Exec format error
#\^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
This may be due to the use of an Intel binary for busybox.