fix raid kernel commandline configuration for RL8

[no ci]

Author: sjpb

ansible/roles/raid/handlers/main.yml

@@ -1,3 +1,3 @@
 - name: Update GRUB configuration file
-  ansible.builtin.command: grub2-mkconfig -o /boot/grub2/grub.cfg --update-bls-cmdline
+  ansible.builtin.command: "grub2-mkconfig -o /boot/grub2/grub.cfg {{ '--update-bls-cmdline' if ansible_distribution_major_version == '9' else '' }}"
   when: update_grub.changed

ansible/roles/raid/tasks/main.yml

@@ -9,11 +9,9 @@
     backup: true
     backrefs: true
   register: update_grub
+  notify:
+    - Update GRUB configuration file
   vars:
     grub_cmdline_var:
       '8': GRUB_CMDLINE_LINUX
       '9': GRUB_CMDLINE_LINUX_DEFAULT
-
-- name: Update GRUB configuration file
-  ansible.builtin.command: grub2-mkconfig -o /boot/grub2/grub.cfg --update-bls-cmdline
-  when: update_grub.changed