[CI] Disable glance RBAC enforcement in generic jobs

We have a problem with glance's RBAC changes
in the generic driver. Disable the enforcement temporarily
while we explore a fix

Related-Bug: #2031191
Change-Id: Ia9c9eb4542c576e3e4d94334e62649abf3cb6faf
Signed-off-by: Goutham Pacha Ravi <gouthampravi@gmail.com>
diff --git a/zuul.d/manila-tempest-jobs.yaml b/zuul.d/manila-tempest-jobs.yaml
index 690b8bc..20b0804 100644
--- a/zuul.d/manila-tempest-jobs.yaml
+++ b/zuul.d/manila-tempest-jobs.yaml
@@ -307,6 +307,7 @@
         MANILA_USE_SERVICE_INSTANCE_PASSWORD: true
         MANILA_DEFAULT_SHARE_TYPE_EXTRA_SPECS: 'snapshot_support=True create_share_from_snapshot_support=True'
         TEMPEST_USE_TEST_ACCOUNTS: true
+        GLANCE_ENFORCE_SCOPE: false
       devstack_services:
         cinder: true
       devstack_local_conf: