CI: Update job config for 2023.2 being a stable branch

Increment the jobs, in other words:
* Add jobs for 2023.2
* Mark Zed jobs non-voting
* Remove older jobs from the tempest plugin's normal execution
  as they were non-voting previously.

Change-Id: I27d852063a74938992c5cd37e45bfecf31aadd41
diff --git a/zuul.d/stable-jobs.yaml b/zuul.d/stable-jobs.yaml
index fed604b..bbbe8c6 100644
--- a/zuul.d/stable-jobs.yaml
+++ b/zuul.d/stable-jobs.yaml
@@ -1,4 +1,9 @@
 - job:
+    name: ironic-standalone-2023.2
+    parent: ironic-standalone
+    override-checkout: stable/2023.2
+
+- job:
     name: ironic-standalone-2023.1
     parent: ironic-standalone
     override-checkout: stable/2023.1
@@ -42,6 +47,11 @@
         USE_PYTHON3: True
 
 - job:
+    name: ironic-standalone-redfish-2023.2
+    parent: ironic-standalone
+    override-checkout: stable/2023.2
+
+- job:
     name: ironic-standalone-redfish-2023.1
     parent: ironic-standalone
     override-checkout: stable/2023.1
@@ -89,11 +99,21 @@
         USE_PYTHON3: True
 
 - job:
+    name: ironic-standalone-anaconda-2023.2
+    parent: ironic-standalone-anaconda
+    override-checkout: stable/2023.2
+
+- job:
     name: ironic-standalone-anaconda-2023.1
     parent: ironic-standalone-anaconda
     override-checkout: stable/2023.1
 
 - job:
+    name: ironic-tempest-functional-python3-2023.2
+    parent: ironic-tempest-functional-python3
+    override-checkout: stable/2023.2
+
+- job:
     name: ironic-tempest-functional-python3-2023.1
     parent: ironic-tempest-functional-python3
     override-checkout: stable/2023.1
@@ -134,6 +154,11 @@
     override-checkout: stable/train
 
 - job:
+    name: ironic-tempest-functional-rbac-scope-enforced-2023.2
+    parent: ironic-tempest-functional-rbac-scope-enforced
+    override-checkout: stable/2023.2
+
+- job:
     name: ironic-tempest-functional-rbac-scope-enforced-2023.1
     parent: ironic-tempest-functional-rbac-scope-enforced
     override-checkout: stable/2023.1
@@ -149,6 +174,11 @@
     override-checkout: stable/zed
 
 - job:
+    name: ironic-tempest-ipa-wholedisk-direct-tinyipa-multinode-2023.2
+    parent: ironic-tempest-ipa-wholedisk-direct-tinyipa-multinode
+    override-checkout: stable/2023.2
+
+- job:
     name: ironic-tempest-ipa-wholedisk-direct-tinyipa-multinode-2023.1
     parent: ironic-tempest-ipa-wholedisk-direct-tinyipa-multinode
     override-checkout: stable/2023.1
@@ -187,6 +217,11 @@
         USE_PYTHON3: True
 
 - job:
+    name: ironic-inspector-tempest-2023.2
+    parent: ironic-inspector-tempest
+    override-checkout: stable/2023.2
+
+- job:
     name: ironic-inspector-tempest-2023.1
     parent: ironic-inspector-tempest
     override-checkout: stable/2023.1
@@ -239,6 +274,11 @@
         USE_PYTHON3: True
 
 - job:
+    name: ironic-inspector-tempest-rbac-scope-enforced-2023.2
+    parent: ironic-inspector-tempest-rbac-scope-enforced
+    override-checkout: stable/2023.2
+
+- job:
     name: ironic-inspector-tempest-rbac-scope-enforced-2023.1
     parent: ironic-inspector-tempest-rbac-scope-enforced
     override-checkout: stable/2023.1
@@ -249,6 +289,11 @@
     override-checkout: stable/zed
 
 - job:
+    name: ironic-inspector-tempest-discovery-2023.2
+    parent: ironic-inspector-tempest-discovery
+    override-checkout: stable/2023.2
+
+- job:
     name: ironic-inspector-tempest-discovery-2023.1
     parent: ironic-inspector-tempest-discovery
     override-checkout: stable/2023.1