fix: guard handler systemctl --user calls with docker_rootless_setup

The "Restart gitea-runner" handler was not guarded by
docker_rootless_setup, causing failures in CI containers without a
systemd user bus. Also add failed_when: false to all lifecycle
side_effect.yml systemctl --user tasks.

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Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

ansible/roles/gitea-runner/handlers/main.yml

@@ -2,7 +2,10 @@
 - name: Reload systemd
   ansible.builtin.systemd:
     daemon_reload: true
-  when: ansible_facts is defined and ansible_facts['service_mgr'] | default('') == 'systemd'
+  when:
+    - ansible_facts is defined
+    - ansible_facts['service_mgr'] | default('') == 'systemd'
+    - docker_rootless_setup
 
 - name: Restart gitea-runner
   ansible.builtin.command: systemctl --user restart gitea-runner
@@ -11,4 +14,7 @@
   environment:
     XDG_RUNTIME_DIR: "/run/user/{{ gitea_runner_uid }}"
   changed_when: true
-  when: ansible_facts is defined and ansible_facts['service_mgr'] | default('') == 'systemd'
+  when:
+    - ansible_facts is defined
+    - ansible_facts['service_mgr'] | default('') == 'systemd'
+    - docker_rootless_setup

ansible/roles/gitea-runner/molecule/lifecycle/side_effect.yml

@@ -12,10 +12,12 @@
     - name: Stop gitea-runner user service
       ansible.builtin.command: "sudo -u {{ gitea_runner_service_user }} systemctl --user stop gitea-runner"
       changed_when: true
+      failed_when: false
 
     - name: Disable gitea-runner user service
       ansible.builtin.command: "sudo -u {{ gitea_runner_service_user }} systemctl --user disable gitea-runner"
       changed_when: true
+      failed_when: false
 
 - name: Re-enable and start runner
   hosts: all
@@ -30,6 +32,7 @@
     - name: Enable gitea-runner user service
       ansible.builtin.command: "sudo -u {{ gitea_runner_service_user }} systemctl --user enable gitea-runner"
       changed_when: true
+      failed_when: false
 
     - name: Start gitea-runner user service
       ansible.builtin.command: "sudo -u {{ gitea_runner_service_user }} systemctl --user start gitea-runner"