Devops 129 policy (#771)

* fix: DEVOPS-129 governance-api gateway prd

* feat: DEVOPS-129 blockchain-infra security policy

Author: pabops

products/multisig/cd/overlays/production/backendpolicy.yaml

@@ -4,7 +4,7 @@ metadata:
   name: multisig
 spec:
   default:
-    securityPolicy: prod-apps-gateway
+    securityPolicy: blockchain-infra-gateway
   targetRef:
     group: ""
     kind: Service