Switch CentOS jobs over to CentOS 9 Stream

Since Devstack is dropping CentOS 8 Stream[1], we need to move our jobs over to CentOS 9 Stream. Now that there is a "devstack-single-node-centos-9-stream" nodeset we can remove our local CentOS 9 Stream nodeset.

[1] http://lists.openstack.org/pipermail/openstack-discuss/2022-April/028321.html

Change-Id: I1c8dfec7bd2b5f80b12d7229e47ef8ff70bd283b

.zuul.yaml

@@ -1,13 +1,3 @@
-- nodeset:
-    name: designate-single-node-centos-9-stream
-    nodes:
-      - name: controller
-        label: centos-9-stream
-    groups:
-      - name: tempest
-        nodes:
-          - controller
-
 - job:
     name: designate-base
     parent: devstack-tempest
@@ -57,9 +47,9 @@
     parent: designate-base
 
 - job:
-    name: designate-bind9-centos8stream-fips
+    name: designate-bind9-centos9stream-fips
     parent: designate-bind9
-    nodeset: devstack-single-node-centos-8-stream
+    nodeset: devstack-single-node-centos-9-stream
     description: |
       Functional testing for a FIPS enabled Centos 8 stream system
     pre-run: playbooks/enable-fips.yaml
@@ -85,7 +75,7 @@
 - job:
     name: designate-bind9-centos-9-stream
     parent: designate-bind9
-    nodeset: designate-single-node-centos-9-stream
+    nodeset: devstack-single-node-centos-9-stream
 
 - job:
     name: designate-pdns4
@@ -175,7 +165,7 @@
     check:
       jobs:
         - designate-bind9
-        - designate-bind9-centos8stream-fips:
+        - designate-bind9-centos9stream-fips:
             voting: false
         - designate-bind9-centos-9-stream:
             voting: false