Add nodejs and python-pip to gitea_runner dependencies

Node.js is required by JS-based actions (e.g. actions/checkout@v4)
on native host runners. python-pip is needed for ansible-lint install.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

ansible/roles/gitea_runner/tasks/main.yml

@@ -4,6 +4,8 @@
     name:
       - git
       - docker
+      - nodejs
+      - python-pip
     state: present
 
 - name: Enable and start Docker