update build badge for AZP (#72807) (#72812)

(cherry picked from commit d567a553a9)

README.rst

@@ -92,8 +92,8 @@ See `COPYING <COPYING>`_ to see the full text.
    :target: https://pypi.org/project/ansible
 .. |Docs badge| image:: https://img.shields.io/badge/docs-latest-brightgreen.svg
    :target: https://docs.ansible.com/ansible/latest/
-.. |Build Status| image:: https://api.shippable.com/projects/573f79d02a8192902e20e34b/badge?branch=devel
-   :target: https://app.shippable.com/projects/573f79d02a8192902e20e34b
+.. |Build Status| image:: https://dev.azure.com/ansible/ansible/_apis/build/status/CI?branchName=stable-2.8
+   :target: https://dev.azure.com/ansible/ansible/_build/latest?definitionId=20&branchName=stable-2.8
 .. |Chat badge| image:: https://img.shields.io/badge/chat-IRC-brightgreen.svg
    :target: https://docs.ansible.com/ansible/latest/community/communication.html
 .. |Code Of Conduct| image:: https://img.shields.io/badge/code%20of%20conduct-Ansible-silver.svg