As per skolsuper

https://github.com/skolsuper/ansible-gitlab-runner/commit/b309620a099623def60b9c5af956cb76e6805e25

tasks/install-debian.yml

 ---
-- name: Add GitLab apt key
-  apt_key:
-    url: https://packages.gitlab.com/gpg.key
-    state: present
 
-- name: Install GitLab Runner dependencies
-  apt:
-    name: '{{ item }}'
-    state: present
-  with_items:
-    - debian-archive-keyring
-    - apt-transport-https
-
-- name: Add GitLab Runner apt repo
-  apt_repository:
-    repo: 'deb https://packages.gitlab.com/runner/gitlab-ci-multi-runner/{{ ansible_distribution | lower }}/ {{ ansible_distribution_major_version }} main'
-    state: present
+- name: Install Gitlab repository
+  shell: curl -L https://packages.gitlab.com/install/repositories/runner/gitlab-ci-multi-runner/script.deb.sh | sudo bash
 
 - name: Install GitLab Runner
   apt:
     name: gitlab-ci-multi-runner
     state: latest
-    update_cache: yes