Release vitrage RC1 for Antelope

This proposed a RC1 release for vitrage to get any merged changes
out prior to the RC1 deadline for Antelope 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 early Friday, March 03.

$ git log --oneline --no-merges 9.0.0..f3feec42
f3feec42 Fix tox 4 changes
5935f89f Fix passenv format unaccepted by tox 4
d5d348f3 Fix missing oslo.messaging options
43e8e5f1 Switch to 2023.1 Python3 unit tests and generic template name
df1e042c Update master for stable/zed
df3c4149 Remove Ceilometer datasource
45f9cd82 make datasource voting again
7f209861 Get rid of warning caused by [service_credentials] region_name

Signed-off-by: Hervé Beraud <hberaud@redhat.com>
Change-Id: I1acddb25526c4eb1c8d5642679765d2eaf572dd6

deliverables/antelope/vitrage.yaml

@@ -5,3 +5,11 @@ storyboard: openstack/vitrage
 release-model: cycle-with-rc
 repository-settings:
   openstack/vitrage: {}
+releases:
+  - version: 10.0.0.0rc1
+    projects:
+      - repo: openstack/vitrage
+        hash: f3feec42643c21b664233264b213a471e0f795f7
+branches:
+  - name: stable/2023.1
+    location: 10.0.0.0rc1