GRM-8: fix: remove recursive variable definitions in install and update playbooks

ansible/install-runner.yml

@@ -5,8 +5,5 @@
   vars:
     gitea_url: "{{ gitea_url | mandatory }}"
     registration_token: "{{ registration_token | mandatory }}"
-    runner_name: "{{ runner_name | default(inventory_hostname) }}"
-    runner_mode: "{{ runner_mode | default('docker') }}"
-    runner_labels: "{{ runner_labels | default('ubuntu-latest:docker://runner-images:ubuntu-22.04') }}"
   roles:
     - role: gitea-runner

ansible/update-runner.yml

@@ -2,9 +2,7 @@
 - name: Update Gitea Actions runner
   hosts: all
   become: true
-  vars:
-    gitea_runner_version: "{{ gitea_runner_version | default('latest') }}"
-    runner_name: "{{ runner_name | default(inventory_hostname) }}"
+  vars: {}
   tasks:
     - name: Update runner (Docker mode)
       ansible.builtin.include_role: