cluster/kube/k0: add issues.hackerspace.pl crdb user

Change-Id: If78f795e0e35360b65c666e6b217037fc34a2ccf
diff --git a/cluster/kube/k0.libsonnet b/cluster/kube/k0.libsonnet
index 5ad09f2..f393dbe 100644
--- a/cluster/kube/k0.libsonnet
+++ b/cluster/kube/k0.libsonnet
@@ -81,6 +81,7 @@
                 sso: k0.cockroach.waw2.Client("sso"),
                 herpDev: k0.cockroach.waw2.Client("herp-dev"),
                 gitea: k0.cockroach.waw2.Client("gitea"),
+                issues: k0.cockroach.waw2.Client("issues"),
             },
         },