remove zram from debian11 since no support

roles/configuration/tasks/main.yml

@@ -202,7 +202,7 @@
             mode: '0644'
 
         - name: Create zram config
-          when: os != 'rhel8'
+          when: os not in ['debian11', 'rhel8']
           ansible.builtin.copy:
             dest: /mnt/etc/systemd/zram-generator.conf
             content: |