Release heat-agents RC1 for Antelope

This proposed a RC1 release for heat-agents 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 5.0.0..e5d2863
e5d2863 Switch to 2023.1 Python3 unit tests and generic template name
4666ca9 Update master for stable/zed

Signed-off-by: Hervé Beraud <hberaud@redhat.com>
Change-Id: I1db2aabea0cde6d0422be9d5b38f32db3d6e5c5e

deliverables/antelope/heat-agents.yaml

@@ -6,3 +6,11 @@ team: heat
 type: other
 repository-settings:
   openstack/heat-agents: {}
+releases:
+  - version: 6.0.0.0rc1
+    projects:
+      - repo: openstack/heat-agents
+        hash: e5d2863982f92c6fa3e326832735ecfd7672d824
+branches:
+  - name: stable/2023.1
+    location: 6.0.0.0rc1