Add stable/xena jobs on master gate

We have stable/xena released so we should add
their job on master gate to keep branchless tempest
plugins compatible to stable branch.

This also removes the stable/train job as that is in EM
state now.

Ref: Tempest plugins guide for stable branch testing:
- https://docs.openstack.org/tempest/latest/stable_branch_testing_policy.html

Change-Id: Ia1ecf95d269af2f6edbd562f31fb69c2cc884cf0
diff --git a/zuul.d/projects.yaml b/zuul.d/projects.yaml
index 6d1b15a..9de7fdc 100644
--- a/zuul.d/projects.yaml
+++ b/zuul.d/projects.yaml
@@ -9,21 +9,21 @@
     check:
       jobs:
         - octavia-v2-dsvm-noop-api
+        - octavia-v2-dsvm-noop-api-stable-xena
         - octavia-v2-dsvm-noop-api-stable-wallaby
         - octavia-v2-dsvm-noop-api-stable-victoria
         - octavia-v2-dsvm-noop-api-stable-ussuri
-        - octavia-v2-dsvm-noop-api-stable-train
         - octavia-v2-dsvm-noop-api-scoped-tokens
         - octavia-v2-dsvm-scenario
+        - octavia-v2-dsvm-scenario-stable-xena
         - octavia-v2-dsvm-scenario-stable-wallaby
         - octavia-v2-dsvm-scenario-stable-victoria
         - octavia-v2-dsvm-scenario-stable-ussuri
-        - octavia-v2-dsvm-scenario-stable-train
         - octavia-v2-dsvm-tls-barbican
+        - octavia-v2-dsvm-tls-barbican-stable-xena
         - octavia-v2-dsvm-tls-barbican-stable-wallaby
         - octavia-v2-dsvm-tls-barbican-stable-victoria
         - octavia-v2-dsvm-tls-barbican-stable-ussuri
-        - octavia-v2-dsvm-tls-barbican-stable-train
         - octavia-v2-dsvm-scenario-ipv6-only:
             voting: false
         - octavia-v2-dsvm-scenario-centos-8-stream:
@@ -32,24 +32,24 @@
             voting: false
         - octavia-v2-act-stdby-dsvm-scenario:
             voting: false
+        - octavia-v2-act-stdby-dsvm-scenario-stable-xena:
+            voting: false
         - octavia-v2-act-stdby-dsvm-scenario-stable-wallaby:
             voting: false
         - octavia-v2-act-stdby-dsvm-scenario-stable-victoria:
             voting: false
         - octavia-v2-act-stdby-dsvm-scenario-stable-ussuri:
             voting: false
-        - octavia-v2-act-stdby-dsvm-scenario-stable-train:
-            voting: false
         - octavia-v2-dsvm-spare-pool:
             voting: false
+        - octavia-v2-dsvm-spare-pool-stable-xena:
+            voting: false
         - octavia-v2-dsvm-spare-pool-stable-wallaby:
             voting: false
         - octavia-v2-dsvm-spare-pool-stable-victoria:
             voting: false
         - octavia-v2-dsvm-spare-pool-stable-ussuri:
             voting: false
-        - octavia-v2-dsvm-spare-pool-stable-train:
-            voting: false
         - octavia-v2-dsvm-cinder-amphora:
             voting: false
         # Third party provider jobs
@@ -62,18 +62,18 @@
       queue: octavia
       jobs:
         - octavia-v2-dsvm-noop-api
+        - octavia-v2-dsvm-noop-api-stable-xena
         - octavia-v2-dsvm-noop-api-stable-wallaby
         - octavia-v2-dsvm-noop-api-stable-victoria
         - octavia-v2-dsvm-noop-api-stable-ussuri
-        - octavia-v2-dsvm-noop-api-stable-train
         - octavia-v2-dsvm-noop-api-scoped-tokens
         - octavia-v2-dsvm-scenario
+        - octavia-v2-dsvm-scenario-stable-xena
         - octavia-v2-dsvm-scenario-stable-wallaby
         - octavia-v2-dsvm-scenario-stable-victoria
         - octavia-v2-dsvm-scenario-stable-ussuri
-        - octavia-v2-dsvm-scenario-stable-train
         - octavia-v2-dsvm-tls-barbican
+        - octavia-v2-dsvm-tls-barbican-stable-xena
         - octavia-v2-dsvm-tls-barbican-stable-wallaby
         - octavia-v2-dsvm-tls-barbican-stable-victoria
         - octavia-v2-dsvm-tls-barbican-stable-ussuri
-        - octavia-v2-dsvm-tls-barbican-stable-train