Fix docker tasks

tasks/docker.yml

@@ -4,7 +4,7 @@
 
 - name: 'copy docker gpg key'
   become: true
-  file:
+  copy:
     src: 'files/docker.gpg'
     dest: '/etc/apt/keyrings/docker.gpg'
     owner: root
@@ -12,7 +12,7 @@
 - name: 'install docker apt source'
   become: true
   template:
-    src: 'templates/docker/docker.j2'
+    src: 'templates/docker.j2'
     dest: '/etc/apt/sources.list.d/docker.list'
     owner: root