role git-repos: add option to force update

inventory/group_vars/ffmwu-gateways

@@ -8,12 +8,15 @@ common_repos:
   backend-scripts:
     repo_url: https://github.com/freifunk-mwu/backend-scripts.git
     version: ansible
+    force: no
   icvpn-meta:
     repo_url: https://github.com/freifunk/icvpn-meta.git
     version: master
+    force: no
   icvpn-scripts:
     repo_url: https://github.com/freifunk/icvpn-scripts.git
     version: master
+    force: no
 
 prometheus_components:
   - node_exporter

roles/git-repos/tasks/main.yml

@@ -19,5 +19,6 @@
     repo: "{{ item.value.repo_url }}"
     dest: "/home/admin/clones/{{ item.key }}"
     version: "{{ item.value.version }}"
+    force: "{{ item.value.force }}"
   with_dict: "{{ common_repos }}"
   become: false