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/ironic/tasks/network/lookup.yml b/roles/ironic/tasks/network/lookup.yml
index 8838ac9..95a8f71 100644
--- a/roles/ironic/tasks/network/lookup.yml
+++ b/roles/ironic/tasks/network/lookup.yml
@@ -23,11 +23,11 @@
 - name: Assert that we match a single network only
   ansible.builtin.assert:
     that:
-      - ironic_bare_metal_networks_info.openstack_networks | length == 1
-    fail_msg: "Expected exactly one network, but found {{ ironic_bare_metal_networks_info.openstack_networks | length }}"
+      - ironic_bare_metal_networks_info.networks | length == 1
+    fail_msg: "Expected exactly one network, but found {{ ironic_bare_metal_networks_info.networks | length }}"
     success_msg: "Successfully matched a single network"
   run_once: true
 
 - name: Set fact with bare metal network information
   ansible.builtin.set_fact:
-    ironic_bare_metal_network: "{{ ironic_bare_metal_networks_info.openstack_networks[0] }}"
+    ironic_bare_metal_network: "{{ ironic_bare_metal_networks_info.networks[0] }}"