Turn shell task into smaller Ansible tasks

ansible/roles/docker/tasks/main.yaml

@@ -11,14 +11,21 @@
       - gnupg
       - lsb-release
 
-- name: Add Docker GPG key # noqa command-instead-of-module risky-shell-pipe
+- name: Retrieve Docker GPG key
+  ansible.builtin.uri:
+    url: https://download.docker.com/linux/debian/gpg
+    return_content: true
+  register: docker_gpg_key
+
+- name: Install Docker GPG key
   become: true
-  ansible.builtin.shell: "curl -fsSL https://download.docker.com/linux/debian/gpg | gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg"
+  ansible.builtin.command: "gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg"
   args:
+    stdin: "{{ docker_gpg_key.content }}"
     creates: /usr/share/keyrings/docker-archive-keyring.gpg
 
-- name: Retrieve dpkg architecture # noqa command-instead-of-shell
-  ansible.builtin.shell: dpkg --print-architecture
+- name: Retrieve dpkg architecture
+  ansible.builtin.command: dpkg --print-architecture
   register: dpkg_architecture
   changed_when: false