Merge pull request #25 from riscv-non-isa/24-update-copyright-to-2025

Update copyright to 2024-2025

Author: vlsunil

src/rimt-spec.adoc

@@ -55,7 +55,7 @@ Attribution 4.0 International License (CC-BY 4.0). The full
 license text is available at
 https://creativecommons.org/licenses/by/4.0/.
 
-Copyright 2024 by RISC-V International.
+Copyright 2024-2025 by RISC-V International.
 
 [preface]
 include::contributors.adoc[]