Release python-mistralclient 2.1.1

A critical bug was fixed[0] after 2.1.0 release, otherwise Horizon
will be broken in some scenario.

[0]: https://review.openstack.org/#/c/362507/

Change-Id: I9c3f4d7d86ab8edfdcfc02bbac6c9759d62b6408

deliverables/newton/python-mistralclient.yaml

@@ -13,3 +13,9 @@ releases:
       * Add KeyCloak OpenID Connect authentication
       * Add ID option to update Action Definition
       * Add target cloud options
+  - version: 2.1.1
+    projects:
+      - repo: openstack/python-mistralclient
+        hash: a37b5fe562a85787b74edc48c923aa6343490ec1
+    highlights: |-
+      * Remove strict dependency on osprofiler