fix: update copyright year to 2026

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: alexeyzimarev

LICENSE

@@ -187,7 +187,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright 2025 Eventuous HQ OÜ
+   Copyright 2026 Eventuous HQ OÜ
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.

kurrentdb/LICENSE

@@ -187,7 +187,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright 2025 Eventuous HQ OÜ
+   Copyright 2026 Eventuous HQ OÜ
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.

otel/LICENSE

@@ -187,7 +187,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright 2025 Eventuous HQ OÜ
+   Copyright 2026 Eventuous HQ OÜ
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.