cluster auditor: Update opa-exporter to run as non-root user

chart/values.yaml

@@ -332,7 +332,7 @@ clusterAuditor:
   git:
     repo: https://repo1.dso.mil/platform-one/big-bang/apps/core/cluster-auditor.git
     path: "./chart"
-    tag: "1.4.0-bb.2"
+    tag: "1.4.0-bb.4"
 
   # -- Flux reconciliation overrides specifically for the Cluster Auditor Package
   flux: {}