Bump openstacksdk to >1

This patch also vendors the openstack.cloud.subnet
module due to a problem with `disable_gateway_ip`
not being set for newly created subnets[1].

[1]: https://review.opendev.org/c/openstack/ansible-collections-openstack/+/940927

Change-Id: Ia021a1d7b82823c2e7498fdd66da3e2d5c6a8a79
(cherry picked from commit 8ccabb61cb8aa6a86c653cc47e43a648e8e07268)
diff --git a/roles/keystone/tasks/main.yml b/roles/keystone/tasks/main.yml
index df942ec..44a92a6 100644
--- a/roles/keystone/tasks/main.yml
+++ b/roles/keystone/tasks/main.yml
@@ -119,6 +119,7 @@
   vexxhost.atmosphere.federation_idp:
     name: "{{ item.domain.name }}"
     domain_id: "{{ item.domain.id }}"
+    is_enabled: true
     remote_ids:
       - "{{ item.item | vexxhost.atmosphere.issuer_from_domain }}"
   loop: "{{ keystone_domains_result.results }}"