Release keystoneauth 3.15.0

This feature release brings in a couple of outward-facing changes:

- The Adapter parameters ``connect_retries`` and ``status_code_retries`` can
  now be set via configuration options ``connect-retries`` and
  ``status-code-retries`` accordingly. [1]
- The ``X-Openstack-Request-Id`` header can now be set per-request via a
  ``global_request_id`` kwarg to ``Adapter`` and ``Session`` request
  methods (``request()``, ``get()``, ``put()``, etc.) [2]

[1] I67ba69bfff69676ceb28b8a7515f10f5eff21c4c
[2] Ied73320fcd813ae796e40cbdb30717900486b92c

Change-Id: Ie11383ac5c0dd2ee9b8a1730b7e365362e7c0084

deliverables/train/keystoneauth.yaml

@@ -1,5 +1,5 @@
 ---
-include-pypi-link: yes
+include-pypi-link: true
 launchpad: keystoneauth
 release-model: cycle-with-intermediary
 team: keystone
@@ -13,3 +13,8 @@ releases:
         repo: openstack/keystoneauth
         tarball-base: keystoneauth1
     version: 3.14.0
+  - projects:
+      - repo: openstack/keystoneauth
+        hash: 3fd9ce7007208b8d59fa36f89a74769b33a8a803
+        tarball-base: keystoneauth1
+    version: 3.15.0