testcase: also check non executable lib for missing rpaths
Our condition was only checking executables, which missed some non executable libraries.
Following up on https://lab.nexedi.com/nexedi/slapos.core/merge_requests/172#note_96033
Our condition was only checking executables, which missed some non executable libraries.
Following up on https://lab.nexedi.com/nexedi/slapos.core/merge_requests/172#note_96033