Merge branch 'update-policy-tag-3.8.1-bb.4' into 'master'

Updated gatekeeper to pass deprecation check

Closes platform-one/big-bang/apps/core/policy#164

See merge request platform-one/big-bang/bigbang!1909

chart/values.yaml

@@ -353,7 +353,7 @@ gatekeeper:
   git:
     repo: https://repo1.dso.mil/platform-one/big-bang/apps/core/policy.git
     path: "./chart"
-    tag: "3.8.1-bb.3"
+    tag: "3.8.1-bb.4"
 
   # -- Flux reconciliation overrides specifically for the OPA Gatekeeper Package
   flux: