Fix race condition between munin conf reload and munin cron | refs #37096

roles/munin/munin-server/handlers/main.yml

 ---
-- name: restart munin-server
+
+- name: wait for munin cron to end
+  ansible.builtin.wait_for:
+    path: /var/run/munin/munin-update.lock
+    state: absent
+  listen: "restart munin-server"
+
+- name: restart munin-server service
   ansible.builtin.service:
     name: munin
     state: restarted
+  listen: "restart munin-server"
+
+...