[TIDY] Set some "diff: false", fix linter warnings

tasks/docker.yml

@@ -3,7 +3,7 @@
 # Variables:
 # - none
 
-- name: docker - Install
+- name: Docker - Install
   ansible.builtin.include_tasks: "{{ item }}"
   with_first_found:
     - "docker-{{ ansible_distribution }}.{{ ansible_distribution_release }}.yml"
@@ -11,9 +11,9 @@
     - "docker-{{ ansible_os_family }}.yml"
 
 # Other setup tasks
-- name: docker - Add standard user to docker group
-  become: yes
+- name: Docker - Add standard user to docker group
+  become: true
   ansible.builtin.user:
     name: "{{ ansible_user_id }}"
     groups: docker
-    append: yes
+    append: true