nginx: Re-introduce bootstrap_certs

roles/nginx/tasks/main.yaml

@@ -7,6 +7,13 @@
   when:
     - nginx_sites is defined
 
+- name: Install bootstrap cert
+  ansible.builtin.apt:
+    name: "ssl-cert"
+    state: present
+  when:
+    - nginx_bootstrap_certs is defined and nginx_bootstrap_certs
+
 - name: Create sites-available / sites-enabled directories
   ansible.builtin.file:
     state: directory