Fix Docker apt repository signing configuration

ansible/roles/docker/tasks/main.yml

@@ -1,13 +1,15 @@
 ---
 # Docker CE + NVIDIA Container Toolkit
 - name: Add Docker GPG key
-  apt_key:
+  get_url:
     url: https://download.docker.com/linux/ubuntu/gpg
-    state: present
+    dest: /etc/apt/keyrings/docker.asc
+    mode: "0644"
+    force: yes
 
 - name: Add Docker apt repository
   apt_repository:
-    repo: "deb [arch=amd64] https://download.docker.com/linux/ubuntu {{ ansible_distribution_release }} stable"
+    repo: "deb [arch=amd64 signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu {{ ansible_distribution_release }} stable"
     state: present
     filename: docker