Updated gatekeeper to v3.8.0

Package Merge Request

Package Changes

https://repo1.dso.mil/platform-one/big-bang/apps/core/policy/-/blob/3.8.0-bb.0/CHANGELOG.md

Package MR

https://repo1.dso.mil/platform-one/big-bang/apps/core/policy/-/merge_requests/139

For Issue

Closes https://repo1.dso.mil/platform-one/big-bang/apps/core/policy/-/issues/156

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: "3.7.1-bb.0"
+    tag: "3.8.0-bb.0"
 
   # -- Flux reconciliation overrides specifically for the OPA Gatekeeper Package
   flux: