kbs: pin down to released working kbs image version

Fix: #1688
Signed-off-by: Kartik Joshi <[email protected]>

versions.yaml

@@ -40,7 +40,15 @@ git:
   opa:
     url: https://github.com/open-policy-agent/opa
     reference: v0.58.0
+  kbs:
+    url: https://github.com/confidential-containers/kbs
+    reference: 7ec54fa8f74b9bf24d84ef4a35d050d068105732
 oci:
   pause:
     registry: docker://registry.k8s.io/pause
     tag: 3.6
+
+image:
+  kbs:
+    registry: ghcr.io/confidential-containers/key-broker-service
+    tag: latest #use this image until we have stable image pushed to kbs staged images ghcr repo