End support for stable/wallaby

This marks the end of support for stable/wallaby
which is EM now [1]. This remove the stable/wallaby
jobs and also adds relesenote to mark the end of
support of Wallaby.

Depends-On: https://review.opendev.org/c/openstack/releases/+/862393

[1] https://releases.openstack.org/

Change-Id: Ie3bbbc80e4b2e7bca8e8b70fce1d31166220c6d3
diff --git a/releasenotes/notes/end-of-support-of-wallaby-455e4871ae4cb32e.yaml b/releasenotes/notes/end-of-support-of-wallaby-455e4871ae4cb32e.yaml
new file mode 100644
index 0000000..d5c2974
--- /dev/null
+++ b/releasenotes/notes/end-of-support-of-wallaby-455e4871ae4cb32e.yaml
@@ -0,0 +1,12 @@
+---
+prelude: |
+    This is an intermediate release during the 2023.1 development cycle to
+    mark the end of support for EM Wallaby release in Tempest.
+    After this release, Tempest will support below OpenStack Releases:
+
+    * Zed
+    * Yoga
+    * Xena
+
+    Current development of Tempest is for OpenStack 2023.1 development
+    cycle.