fix: flavorsync service acct role

While the flavors themselves are not scoped to a specific project, the
project scoped tokens by default are issued for the project that the
user is in. As a result, if we are creating 'flavorsync' service account
in 'service' project, we should assign the role there too instead of the
default.

Author: skrobul

ansible/roles/keystone_bootstrap/tasks/misc.yml

@@ -59,6 +59,6 @@
 - name: Set 'flavorsync' role
   openstack.cloud.role_assignment:
     user: "{{ _flavor_sync_user.user.id }}"
-    domain: default
+    domain: service
     role: flavorsync
     state: present