Add override for src-nv-secret (src has **redacted** in artifacts)

Author: Peter Hauge

tests/integration/all-resource-types/phases/run-phase4-create-overrides.ps1

@@ -105,6 +105,9 @@ namedValues:
     properties:
       keyVault:
         secretIdentifier: "${targetKvUri}secrets/tgt-secret-value"
+  - name: src-nv-secret
+    properties:
+      value: "tgt-secret-override-value"
 
 loggers:
   - name: src-logger-appinsights