Fix snaps commit id
Fix snaps commit id

Snaps is part of main Functest testcases (Healthcheck).
A fixed version has to be pulled.

We will switch later to snaps packages instead of commit ids.

Change-Id: Ibbc3f1009233ccfb67463b49203b756ea86d3121
Signed-off-by: Cédric Ollivier <d48310251a4a484d041bc5d09a9ac4d86d20f793@orange.com>

opnfv/functest,opnfv/functest