remove useless overhead (#59517)

in the examples for the apt module, pass the list directly to the `pkg` option instead of providing it in `vars`

lib/ansible/modules/packaging/os/apt.py

@@ -168,9 +168,7 @@ EXAMPLES = '''
 
 - name: Install a list of packages
   apt:
-    name: "{{ packages }}"
+    pkg:
-  vars:
-    packages:
     - foo
     - foo-tools