fix disable swap in centos (#10751)

roles/kubernetes/preinstall/tasks/0010-swapoff.yml

 ---
+- name: Check if /etc/fstab exists
+  stat:
+    path: "/etc/fstab"
+    get_attributes: no
+    get_checksum: no
+    get_mime: no
+  register: fstab_file
+
+- name: Remove swapfile from /etc/fstab
+  ansible.posix.mount:
+    name: "{{ item }}"
+    fstype: swap
+    state: absent
+  loop:
+    - swap
+    - none
+  when: fstab_file.stat.exists
+
 - name: Mask swap.target (persist swapoff)
   ansible.builtin.systemd_service:
     name: swap.target