roles: strict truthy values

According to Ansible we can use yes, true, True, "or any quoted st-
ring" for a boolean true, but ansible-lint wants us to use either
true or false.

See: https://chronicler.tech/red-hat-ansible-yes-no-and/

roles/nginx/tasks/letsencrypt.yml

@@ -79,8 +79,8 @@
     ansible.builtin.systemd:
       name: renew-letsencrypt.timer
       state: started
-      enabled: yes
-      daemon_reload: yes
+      enabled: true
+      daemon_reload: true
 
   when: (ansible_distribution == 'Ubuntu' and ansible_distribution_version is version('20.04', '=='))
         or (ansible_distribution == 'Debian' and ansible_distribution_version is version('11', '=='))

roles/nginx/tasks/main.yml

@@ -11,7 +11,7 @@
 
 - name: Update apt cache
   ansible.builtin.apt:
-    update_cache: yes
+    update_cache: true
   when:
     add_nginx_apt_key is changed or
     add_nginx_apt_repository is changed
@@ -66,7 +66,7 @@
   tags: nginx
 
 - name: Start and enable nginx service
-  ansible.builtin.systemd: name=nginx state=started enabled=yes
+  ansible.builtin.systemd: name=nginx state=started enabled=true
   tags: nginx
 
 - name: Configure Let's Encrypt

roles/nginx/tasks/wordpress.yml

@@ -2,12 +2,12 @@
 
 - block:
   - name: Install WordPress
-    ansible.builtin.git: repo=https://github.com/WordPress/WordPress.git dest={{ nginx_root_prefix }}/{{ item.domain_name }}/wordpress version={{ item.wordpress_version }} depth=1 force=yes
+    ansible.builtin.git: repo=https://github.com/WordPress/WordPress.git dest={{ nginx_root_prefix }}/{{ item.domain_name }}/wordpress version={{ item.wordpress_version }} depth=1 force=true
     when: item.has_wordpress is defined and item.has_wordpress
     loop: "{{ nginx_vhosts }}"
 
   - name: Fix WordPress directory permissions
-    ansible.builtin.file: path={{ nginx_root_prefix }}/{{ item.domain_name }} state=directory owner=nginx group=nginx recurse=yes
+    ansible.builtin.file: path={{ nginx_root_prefix }}/{{ item.domain_name }} state=directory owner=nginx group=nginx recurse=true
     when: item.has_wordpress is defined and item.has_wordpress
     loop: "{{ nginx_vhosts }}"
   tags: wordpress