chore: update backend notice

backend/NOTICE.md

@@ -16,12 +16,19 @@ source code repository logs.
 
 ## Declared Project Licenses
 
-This program and the accompanying materials are made available under the terms
-of the Apache License, Version 2.0 which is available at
-https://www.apache.org/licenses/LICENSE-2.0.
+The Tractus-X project uses the following licenses:
 
+- Apache-2.0 for code
+- CC-BY-4.0 for non-code
+
+Apache-2.0:
+This program and the accompanying materials are made available under the terms of the Apache License, Version 2.0 which is available at https://www.apache.org/licenses/LICENSE-2.0.  
 SPDX-License-Identifier: Apache-2.0
 
+CC-BY-4.0:
+The materials in this repository are made available under the terms of the Creative Commons Attribution 4.0 International License, which is available at https://spdx.org/licenses/CC-BY-4.0.html.  
+SPDX-License-Identifier: CC-BY-4.0
+
 ## Source Code
 
 The project maintains the following source code repositories