Release masakari-dashboard RC1 for Antelope

This proposed a RC1 release for masakari-dashboard 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 7.0.0..c192887
c192887 Update tox.ini for tox4
c5c78cb Switch to 2023.1 Python3 unit tests and generic template name
c7ba08d Update master for stable/zed

Signed-off-by: Hervé Beraud <hberaud@redhat.com>
Change-Id: I3b6100924bdde0d2866f4eef561841cd42f16c15

deliverables/antelope/masakari-dashboard.yaml

@@ -6,3 +6,11 @@ type: horizon-plugin
 release-type: horizon
 repository-settings:
   openstack/masakari-dashboard: {}
+releases:
+  - version: 8.0.0.0rc1
+    projects:
+      - repo: openstack/masakari-dashboard
+        hash: c1928878d0fefa79a080aeb34693b629f9f822fb
+branches:
+  - name: stable/2023.1
+    location: 8.0.0.0rc1