feat(proxmox): add hosts config

Signed-off-by: Tuan-Dat Tran <tuan-dat.tran@tudattr.dev>

roles/proxmox/tasks/04_configure_hosts.yaml

@@ -0,0 +1,15 @@
+---
+- name: Configure /etc/hosts with Proxmox cluster nodes
+  ansible.builtin.blockinfile:
+    path: /etc/hosts
+    block: |
+      # Proxmox Cluster Nodes
+      192.168.20.12 aya01.seyshiro.de aya01
+      192.168.20.14 lulu.seyshiro.de lulu
+      192.168.20.28 inko01.seyshiro.de inko01
+      192.168.20.10 naruto01.seyshiro.de naruto01
+      192.168.20.9 mii01.seyshiro.de mii01
+    marker: "# {mark} ANSIBLE MANAGED BLOCK - PROXMOX CLUSTER NODES"
+    create: true
+    mode: "644"
+  when: is_proxmox_node | bool