Comment 5 for bug 1851258

Reviewed: https://review.opendev.org/692859
Committed: https://git.openstack.org/cgit/openstack/kolla-ansible/commit/?id=79c2546d831504fa570389a611001c8af06fadd8
Submitter: Zuul
Branch: stable/stein

commit 79c2546d831504fa570389a611001c8af06fadd8
Author: Raimund Hook <email address hidden>
Date: Sat May 4 18:48:03 2019 +0100

    Updated ansible uri module HEADERS_ field

    This fixes a deprecation warning that gets displayed when running
    the kibana/post_config 'Get kibana default indexes' task.

    HEADERS_ has been deprecated since ansible 2.1 and will be
    removed in 2.9.

    https://docs.ansible.com/ansible/latest/modules/uri_module.html

    This fixes Ansible 2.9 support.

    Change-Id: I177113c606119505c6cb69c66a326f7cbdaf2196
    Closes-bug: #1851258
    (cherry picked from commit 726ba753417fc3d1338b90b8c6d59479e8987f45)