[releng] Move on Amalgam built on Sirius 7.0.0 stable

Move to Amalgam stable/1.13.0-S20210909/capella/ built on Sirius stable
7.0.0-S20210908-102403.

Change-Id: Icc219eeb8dd900fc2ade9f855f7c0a6a1ba55ade
Signed-off-by: Maxime Porhel <maxime.porhel@obeo.fr>
2 files changed