Merge pull request #40 from utilitywarehouse/bump-21.2.8

Set docker image tag to v21.2.8

Author: Nicholas Jones

base/kustomization.yaml

@@ -4,7 +4,7 @@ kind: Kustomization
 images:
   - name: cockroachdb
     newName: cockroachdb/cockroach
-    newTag: v21.2.7
+    newTag: v21.2.8
   - name: cockroach-cfssl-certs
     newName: quay.io/utilitywarehouse/cockroach-cfssl-certs
     newTag: latest