feat: update stackhpc.kayobe_workflows collection

Version `1.2.0` includes support for generating `GitLab` pipelines

Author: jackhodgkiss

etc/kayobe/ansible/requirements.yml

@@ -12,10 +12,8 @@ collections:
   - name: https://github.com/stackhpc/ansible-collection-hashicorp.git
     type: git
     version: add-openbao
-    # (jackhodgkiss) Update once role is merged into collection.
-  - name: https://github.com/stackhpc/ansible-collection-kayobe-workflows.git
-    type: git
-    version: add-gitlab-role
+  - name: stackhpc.kayobe_workflows
+    version: 1.2.0
 roles:
   - src: stackhpc.vxlan
   - name: ansible-lockdown.ubuntu22_cis