Release final python-saharaclient for Xena

This proposed a release for python-saharaclient to get any final merged
changes out prior to the lib freeze for Xena going into effect.

If the team is ready to proceed, please leave a +1 to acknowledge this
release and we will process right away. If the team is working on any
final merges, leave a -1 with some detail on the status and update the
patch with the new commit hash to use when ready.

Patches with no response will be merged by Thursday, September 17.

$ git log --oneline --no-merges 3.3.0..473ad0d
473ad0d Update master for stable/wallaby

Signed-off-by: Hervé Beraud <hberaud@redhat.com>
Change-Id: I1a1eee7aba1aff0cffa17775b7f3e265b9ffa01e

deliverables/xena/python-saharaclient.yaml

@@ -6,3 +6,11 @@ team: sahara
 type: client-library
 repository-settings:
   openstack/python-saharaclient: {}
+releases:
+  - version: 3.4.0
+    projects:
+      - repo: openstack/python-saharaclient
+        hash: 473ad0dd95433b6bead20eb290d3f29800c523b7
+branches:
+  - name: stable/xena
+    location: 3.4.0