only applies to RL9 for now

Author: wtripp180901

environments/.stackhpc/hooks/post.yml

@@ -20,3 +20,4 @@
       ansible.builtin.include_role:
         name: release_train
         tasks_from: revert_repos.yml
+      when: ansible_distribution_major_version == "9" #TODO update role once RL8 config decided

environments/.stackhpc/hooks/pre.yml

@@ -25,3 +25,4 @@
       ansible.builtin.include_role:
         name: release_train
         tasks_from: set_repos.yml
+      when: ansible_distribution_major_version == "9" #TODO update role once RL8 config decided