Add the ShutdownTimeout to the audit instance settings

Author: mauroservienti

src/ServiceControlInstaller.Engine/Configuration/ServiceControl/AuditInstanceSettingsList.cs

@@ -35,5 +35,11 @@ public static class AuditInstanceSettingsList
             Name = "ServiceControl.Audit/EnableFullTextSearchOnBodies",
             SupportedFrom = new SemanticVersion(4, 17, 0)
         };
+
+        public static readonly SettingInfo ShutdownTimeout = new()
+        {
+            Name = "ServiceControl/ShutdownTimeout",
+            SupportedFrom = new SemanticVersion(6, 4, 1)
+        };
     }
 }

src/ServiceControlInstaller.Engine/Configuration/ServiceControl/ServiceControlAuditAppConfig.cs

@@ -34,7 +34,7 @@ protected override void UpdateSettings()
             // When shutting down or restarting the OS we have no control over the
             // shutdown timeout. This is by the installer engine that is run _only_ on
             // Windows via SCMU or PowerShell
-            settings.Set(ServiceControlSettings.ShutdownTimeout, "00:02:00", version);
+            settings.Set(AuditInstanceSettingsList.ShutdownTimeout, "00:02:00", version);
 
             foreach (var manifestSetting in instance.PersistenceManifest.Settings)
             {