Add capability to pre-populate Git repos

[ericzolf]

Something like the following:

- name: Import Git projects to gitea student user
  ansible.builtin.uri:
    url: "{{ gitea_protocol }}://{{ gitea_http_domain }}:{{ gitea_http_port }}/api/v1/repos/migrate"
    method: POST
    body_format: json
    body: {"clone_addr": "{{ item.url }}", "repo_name": "{{ item.name }}"}
    status_code: [201, 409]  # Created or Conflict
    headers:
      Content-Type: "application/json"
    user: "{{ gitea_users[0]['name'] }}"
    password: "{{ gitea_users[0]['password'] }}"
    force_basic_auth: yes
    validate_certs: no
  loop: "{{ gitea_repos }}"

Withdefaults/main.yml looking like the following:

# list of repos to migrate/copy onto the first user's account
gitea_repos: []
# example of entry
#  - name: ansible_role_gitea 
#    url: https://github.com/roles-ansible/ansible_role_gitea.git

It's a bit crude to simply use the first user but you perhaps have a better idea how to do it (simply worked for me!).