Prefer ansible_architecture over ansible_userspace_architecture

It appears that the ansible_userspace_architecture fact is undefined
in at least some cases now, and in any event ansible_architecture
gives the expected value.

tasks/compose_Amazon.yml

@@ -3,8 +3,12 @@
 #
 # https://docs.docker.com/compose/install/linux/
 
+- name: Debug
+  ansible.builtin.debug:
+    msg: "{{ ansible_architecture }}"
+
 - name: Install Docker Compose V2 plugin
   ansible.builtin.get_url:
     dest: /usr/libexec/docker/cli-plugins/docker-compose
     mode: '0755'
-    url: https://github.com/docker/compose/releases/latest/download/docker-compose-{{ ansible_system }}-{{ ansible_userspace_architecture }}
+    url: https://github.com/docker/compose/releases/latest/download/docker-compose-{{ ansible_system }}-{{ ansible_architecture }}