Package name different for debian based systems (Fixes BUGZ-4039)
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This merge request is automatically copied from !1295 (merged) orginally made by @maikenp
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Small bugfix for arcctl deploy igtf-ca**
For debian flavours the packages are named igtf-policy-*
and not ca_policy_igtf-*
as for rhel flavours.
Edited by Maiken