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

@@ -46,12 +46,14 @@
     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
+      Functional testing for a FIPS enabled Centos 9 stream system
     pre-run: playbooks/enable-fips.yaml
+    vars:
+      nslookup_target: 'opendev.org'
 
 - job:
     name: designate-bind9-scoped-tokens
@@ -71,6 +73,11 @@
             dns_feature_enabled:
               enforce_new_defaults: True
 
+- job:
+    name: designate-bind9-centos-9-stream
+    parent: designate-bind9
+    nodeset: devstack-single-node-centos-9-stream
+
 - job:
     name: designate-pdns4
     post-run: playbooks/designate-pdns4/post.yaml
@@ -152,7 +159,7 @@
     check:
       jobs:
         - designate-bind9
-        - designate-bind9-centos8stream-fips:
+        - designate-bind9-centos9stream-fips:
             voting: false
         - designate-bind9-scoped-tokens
         - designate-pdns4