istio: remove server header via envoyfilter

Package Owner Merge Request

Package Changes

Removes server response header to prevent information disclosure

https://repo1.dso.mil/platform-one/big-bang/apps/core/istio-controlplane/-/merge_requests/63

https://repo1.dso.mil/platform-one/big-bang/apps/core/istio-controlplane/-/releases/1.10.3-bb.1

Additional Details

Closes #241 (closed)

chart/values.yaml

@@ -111,7 +111,7 @@ istio:
   git:
     repo: https://repo1.dso.mil/platform-one/big-bang/apps/core/istio-controlplane.git
     path: "./chart"
-    tag: "1.10.3-bb.0"
+    tag: "1.10.3-bb.1"
 
   # Ingress gateways are created based on the key name.  Adding more keys will add ingress gateways.
   # Ingress gateways are setup in a Horizontal Pod Autoscaler with 1 to 5 replicas