feat ✨: Add task to gather active swaps and comment swap entries in fstab

This commit introduces a new feature that adds a task to gather information about active swaps on the system. Additionally, it comments out existing swap entries in the `/etc/fstab` file to prevent them from being mounted at boot.

tasks/swap.yml

@@ -6,18 +6,23 @@
     state: present
     reload: yes
 
+- name: swap | Gather active swaps
+  command: swapon --noheadings --show=NAME
+  register: active_swaps
+  changed_when: false
+
 - name: swap | Disable swap if host has enough RAM
   ansible.builtin.command: swapoff -a
   when:
     - proxmox_disable_swap
     - ansible_memtotal_mb >= proxmox_min_ram_mb_for_no_swap
-  changed_when: false
+    - active_swaps.stdout != ""
 
-- name: swap | Remove swap from fstab
+- name: swap | Comment swap entries in fstab
   ansible.builtin.replace:
     path: /etc/fstab
-    regexp: '^\S+\s+\S+\s+swap\s+.*$'
+    regexp: '^(\s*)(?!#)(\S+\s+\S+\s+swap\s+.*)$'
-    replace: ''
+    replace: '\1# \2'
   when:
     - proxmox_disable_swap
     - ansible_memtotal_mb >= proxmox_min_ram_mb_for_no_swap