Make test-registry-buildset-registery-k8s-<docker|crio> non-voting

These tests are unhappy after we switched the default nodeset to
Ubuntu Jammy; it is not obvious to me why.  Rather than just pinning
them back to the old distro and leaving it to bitrot more, make these
non-voting as we investigate.

zuul-jobs-test-registry-buildset-registry is also failing, but has to
run for the Zuul to +1 this.  Pin this to focal, but as mentioned
inline we have a follow-on update to skopeo install that seems to fix
this.

Change-Id: Id6ee7ed38fec254493a2abbfa076b9671c907c83

zuul-tests.d/container-roles-jobs.yaml

@@ -223,9 +223,20 @@
     post-run: test-playbooks/registry/test-registry-post.yaml
     vars:
       container_command: docker
+    # NOTE(ianw) 2022-11-07 : Pinned to get
+    #  https://review.opendev.org/c/zuul/zuul-jobs/+/86358
+    # through the gate, but fixed with
+    #  https://review.opendev.org/c/zuul/zuul-jobs/+/863575
+    nodeset:
+      nodes:
+        - name: ubuntu-focal
+          label: ubuntu-focal
 
 - job:
     name: zuul-jobs-test-registry-buildset-registry-k8s-docker
+    # NOTE(ianw) 2022-11-04 : This job is currently unhappy on Ubuntu
+    # Jammy, and needs full investigation.
+    voting: false
     dependencies: zuul-jobs-test-registry-buildset-registry
     description: |
       Test a buildset registry with kubernetes and docker
@@ -251,6 +262,9 @@
 
 - job:
     name: zuul-jobs-test-registry-buildset-registry-k8s-crio
+    # NOTE(ianw) 2022-11-04 : This job is currently unhappy on Ubuntu
+    # Jammy, and needs full investigation.
+    voting: false
     dependencies: zuul-jobs-test-registry-buildset-registry
     description: |
       Test a buildset registry with kubernetes and CRIO
@@ -540,8 +554,6 @@
         - zuul-jobs-test-registry-docker-multiarch
         - zuul-jobs-test-registry-podman
         - zuul-jobs-test-registry-buildset-registry
-        - zuul-jobs-test-registry-buildset-registry-k8s-docker
-        - zuul-jobs-test-registry-buildset-registry-k8s-crio
         - zuul-jobs-test-registry-buildset-registry-openshift-docker
         - zuul-jobs-test-ensure-kubernetes-docker-ubuntu-bionic
         - zuul-jobs-test-ensure-kubernetes-docker-ubuntu-focal