End support for stable/2023.2

Stable/2023.2 is EOL now[1] and Tempest
does not support EOL releases so this marks
the end of support for stable/2023.2.

This adds the release note to mark the end of
support of 2023.2 as well as drop the job.

[1] https://review.opendev.org/c/openstack/releases/+/948580

Change-Id: I79959d34c82498b389cb4ba9e72a8b71b74c191a
diff --git a/releasenotes/notes/end-of-support-of-2023-2-3631d8d0f3507518.yaml b/releasenotes/notes/end-of-support-of-2023-2-3631d8d0f3507518.yaml
new file mode 100644
index 0000000..74323ea
--- /dev/null
+++ b/releasenotes/notes/end-of-support-of-2023-2-3631d8d0f3507518.yaml
@@ -0,0 +1,12 @@
+---
+prelude: >
+    This is an intermediate release during the 2025.2 development cycle to
+    mark the end of support for 2023.2 release in Tempest.
+    After this release, Tempest will support below OpenStack Releases:
+
+    * 2025.1
+    * 2024.2
+    * 2024.1
+
+    Current development of Tempest is for OpenStack 2025.2 development
+    cycle.