Caracal-2 release for oslo.middleware

This is the Caracal-2 milestone release for oslo.middleware.
Clients and libraries following the cycle-with-intermediary release
model are encouraged to release each milestone to make sure updates
are made available.

If the team is happy with the current release hash, please +1 this
patch and we will process the release. If you need to get some
important changes merged first, leave a -1 and update the patch with
a new commit hash to use once it is ready.

If a release is definitely not wanted at this time, please -1 and
leave a comment explaining that and we can abandon the patch.

Any patches with no response will be assumed to be OK and will be
processed after January 11th.

Change-Id: Ibe4009b6665665fcbbb5e95cd142bb86ac6960c8
Signed-off-by: Elod Illes <elod.illes@est.tech>

deliverables/caracal/oslo.middleware.yaml

@@ -6,3 +6,8 @@ team: oslo
 type: library
 repository-settings:
   openstack/oslo.middleware: {}
+releases:
+  - version: 6.0.0
+    projects:
+      - repo: openstack/oslo.middleware
+        hash: fdd7e462e5e0fac0a21412ec76acc134db5d9b6e