fix: some of the unit tests were not updated when we changed the settings (#1464)

Author: SamRobinson75684

tests/PdsProcessorTests/PdsProcessorTests.cs

@@ -30,7 +30,7 @@ public PdsProcessorTests()
             KId = "",
             AuthTokenURL = "",
             ParticipantManagementTopic = "some-fake-topic",
-            ServiceBusConnectionString = "",
+            ServiceBusConnectionString_client_internal = "",
             UseFakePDSServices = false
         };