OVH will upgrade the GRA1 region to a new OpenStack release on
2022/03/28.
During this operation, all API are going to be down (for few hours).
A proper communication will be done, but this commit should be merged
just before.
Change-Id: I5bfc7af472f94c74e6fd6234c1e8e0205109a50d
Signed-off-by: Arnaud Morin <arnaud.morin@ovhcloud.com>