Fix error in docker role

basic/roles/docker/tasks/autoheal.yml

+- name: Pull the latest autoheal image
+  community.docker.docker_image:
+    name: "willfarrell/autoheal"
+    source: pull
+
 - name: Start Autoheal container
   community.docker.docker_container:
     name: autoheal
     image: willfarrell/autoheal
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock
-    environment:
-      - AUTOHEAL_CONTAINER_LABEL=all
+    env:
+      AUTOHEAL_CONTAINER_LABEL: all
     restart_policy: always
     state: started