Specify nodeset for job cinder-storpool-tempest

Change-Id: I8e897569092746fa1be789e6d86f159236f74702
diff --git a/zuul.d/sp-cinder.yaml b/zuul.d/sp-cinder.yaml
index 63ef89d..fd4ad46 100644
--- a/zuul.d/sp-cinder.yaml
+++ b/zuul.d/sp-cinder.yaml
@@ -46,6 +46,7 @@
       # - config
       - sp-osci
     timeout: 10800
+    nodeset: ubuntu2204-openstack-multi-node-mixed
     secrets:
       # openstack-client
       - name: OPENSTACK_DATA