Add usernum variable to DEVOPS_ROADSHOW (#8957)

* Initial advanced gitops workshop

* Update user to admin

* Update default user

* Switch user to admin and remove web terminal operator

* Revert "Switch user to admin and remove web terminal operator"

This reverts commit 5317b57.

* Use default template for Argo CD for workshop

* Add usernum variable and remove lab guide link

ansible/roles_ocp_workloads/ocp4_workload_devops_roadshow/tasks/workload.yml

@@ -166,8 +166,8 @@
     user: "user{{ n }}"
     data:
       user: "user{{ n }}"
+      usernum: "{{ n }}"
       password: "{{ ocp4_workload_authentication_htpasswd_user_password }}"
-      lab_guide_link: "https://openshiftdemos.github.io/argo-rollouts-workshop/argo-rollouts-workshop/main/index.html?USERNUM={{ n }}"
   loop: "{{ range(1, num_users | int + 1) | list }}"
   loop_control:
     loop_var: n