Correctly configure S3 Token Middleware for Swift

According the documentation [1] there need to configure auth_uri in the
[filter:s3token] section instead of www_authenticate_uri which cause an
error 'swift.common.wsgi.ConfigFileError: Invalid auth_uri; must
include scheme and host' during start the swift-proxy-server container.

1. https://docs.openstack.org/swift/ussuri/middleware.html#s3-token-middleware



Change-Id: I6b8f5807ebb746428a501dca13eae30763dede8d
Closes-Bug: 1862765
Signed-off-by: Maksim Malchuk <maksim.malchuk@gmail.com>

ansible/roles/swift/templates/proxy-server.conf.j2

@@ -99,5 +99,5 @@ use = egg:swift#s3api
 
 [filter:s3token]
 use = egg:swift#s3token
-www_authenticate_uri = {{ keystone_internal_url }}/v3
+auth_uri = {{ keystone_internal_url }}/v3
 {% endif %}

releasenotes/notes/bug-1862765-a6cad9fd2d3f0f48.yaml

+---
+fixes:
+  - |
+    Fix the issue when Swift deployed with S3 Token Middleware enabled.
+    Fixes `LP#1862765 <https://bugs.launchpad.net/kolla-ansible/+bug/1862765>`__