Updating CSIT (docker compose) DMI Snapshot version

- use 'latest' for DMI (ie what is being built)
(DMI-VERSION property is not being used for CSIT)

Issue-ID: CPS-1353
Signed-off-by: ToineSiebelink <toine.siebelink@est.tech>
Change-Id: I8a5c0776587513d3cd0e1be8edc6db0980925273
2 files changed