Fix the permissions for changing users

Signed-off-by: Noah Knegt <git@noahknegt.com>

roles/docker/tasks/addusers.yml

@@ -9,6 +9,7 @@
 
 ---
 - name: Add users to the docker group
+  become: true
   user:
     name: "{{ item }}"
     groups: docker

roles/docker/tasks/check_version.yml

@@ -13,6 +13,12 @@
   register: docker_version
   ignore_errors: true
 
+- name: Install jq
+  become: true
+  package:
+    name: jq
+    state: present
+
 - name: Check if latest version is stable
   shell: curl -s https://api.github.com/repos/docker/cli/tags | jq -r '.[0].name' | grep -E '^[0-9]+\.[0-9]+\.[0-9]+$'
   register: docker_latest_version_stable