gitlab-runner: Always use latest state of gitlab-runner packages

roles/gitlab-runner/tasks/main.yml

 ---
 
 - name: install dependencies
-  pacman: name=docker,python-docker,python-gitlab,gitlab-runner state=present
+  pacman: name=docker,python-docker,python-gitlab,gitlab-runner state=latest update_cache=yes
   when: ansible_facts['os_family'] == "Arch Linux"
   notify: restart gitlab-runner
 
 - name: install dependencies
-  apt: name=docker-ce,gitlab-runner state=present update_cache=yes
+  apt: name=docker-ce,gitlab-runner state=latest update_cache=yes
   when: ansible_facts['os_family'] == "Debian"
   notify: restart gitlab-runner