Added headers

Author: ragavareddychalapala

src/LCT.APICommunications.UTest/RetryHttpClientHandlerUTest.cs

@@ -1,4 +1,10 @@
-using log4net;
+// --------------------------------------------------------------------------------------------------------------------
+// SPDX-FileCopyrightText: 2025 Siemens AG
+//
+//  SPDX-License-Identifier: MIT
+// -------------------------------------------------------------------------------------------------------------------- 
+
+using log4net;
 using Moq.Protected;
 using Moq;
 using System.Net;

src/LCT.APICommunications/RetryHttpClientHandler.cs

@@ -1,4 +1,9 @@
-using log4net;
+// --------------------------------------------------------------------------------------------------------------------
+// SPDX-FileCopyrightText: 2025 Siemens AG
+//
+//  SPDX-License-Identifier: MIT
+// -------------------------------------------------------------------------------------------------------------------- 
+using log4net;
 using Polly;
 using System;
 using System.Linq;