Release sahara RC1 for Antelope

This proposed a RC1 release for sahara 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 17.0.0..5e7258bc
5e7258bc Fix compatibility with oslo.db 12.1.0
ebc6d74b Make ApiValidator to work with jsonschema>=4.0.0
b8509fb6 Update master for stable/zed
4ac54de8 cannot show the running tox -e pylint  command

Signed-off-by: Hervé Beraud <hberaud@redhat.com>
Change-Id: I077f2024725582c5611222effa20b3716624fd15

deliverables/antelope/sahara.yaml

@@ -6,3 +6,11 @@ team: sahara
 type: service
 repository-settings:
   openstack/sahara: {}
+releases:
+  - version: 18.0.0.0rc1
+    projects:
+      - repo: openstack/sahara
+        hash: 5e7258bcc8807493f08671be9b8f4f4c4232eb0a
+branches:
+  - name: stable/2023.1
+    location: 18.0.0.0rc1