fix package manager for archlinux

tasks/main.yml

@@ -53,6 +53,8 @@
     path: /usr/bin/vim.basic
 
 - name: remove /etc/apt/sources.list
+  when:
+    - ansible_facts['distribution'] != 'Archlinux'
   copy:
     dest: /etc/apt/sources.list
     content: "# managed by ansible\n"