- name: Get artifact versions
  uri:
    url: http://k3.workgroup:8081/service/rest/v1/search/assets?maven.artifactId=lunar-lang&maven.extension=jar&sort=version
    user: admin
    password: admin
    method: GET
    force_basic_auth: true
    validate_certs: false
    body_format: json
  register: versions

- name: Set variables
  set_fact:
    artifactId: "{{ versions['json']['items'][0]['maven2']['artifactId'] }}"
    extension: "{{ versions['json']['items'][0]['maven2']['extension'] }}"
    groupId: "{{ versions['json']['items'][0]['maven2']['groupId'] }}"
    version: "{{ versions['json']['items'][0]['maven2']['version'] }}"

- name: Display variables
  debug:
    msg:
      - "{{ groupId }}"
      - "{{ artifactId }}.{{ extension }}"
      - "{{ version }}"

# Как вариант - запрос json
# - debug:
#     msg: "{{ versions.json | json_query('items[0].maven2.version') }}"