🚨 roles: nginx_https_ingress: Fix fqcn linter warnings

fqcn[action-core]: Use FQCN for builtin module actions (service).
    roles/nginx_https_ingress/handlers/main.yml:3 Use `ansible.builtin.service` or `ansible.legacy.service` instead.

    fqcn[action-core]: Use FQCN for builtin module actions (apt_key).
    roles/nginx_https_ingress/tasks/main.yml:20 Use `ansible.builtin.apt_key` or `ansible.legacy.apt_key` instead.

roles/nginx_https_ingress/handlers/main.yml

@@ -1,7 +1,7 @@
 # Handlers für nginx-https-proxy
 ---
 - name: Restart nginx
-  service:
+  ansible.builtin.service:
     name: nginx
     state: restarted
     enabled: yes

roles/nginx_https_ingress/tasks/main.yml

@@ -18,7 +18,7 @@
 # for SSL passthrough.
 
 - name: Add nginx apt-key
-  apt_key:
+  ansible.builtin.apt_key:
     url: https://nginx.org/keys/nginx_signing.key
     state: present