Update copyright year in overview.md

Updated copyright year from 2025 to 2026.

Author: gasparnagy

.marketplace/overview.md

@@ -26,6 +26,6 @@ Read more on the [Reqnroll website](https://www.reqnroll.net).
 
 Reqnroll is licensed under the [BSD-3-Clause license](https://go.reqnroll.net/license).
 
-Copyright (c) 2024-2025 Reqnroll
+Copyright (c) 2024-2026 Reqnroll
 
 *The extension is built based on the [Deveroom for SpecFlow](https://github.com/specsolutions/deveroom-visualstudio) Visual Studio extension, created by Gaspar Nagy (Spec Solutions) and the [SpecFlow for Visual Studio 2022](https://github.com/SpecFlowOSS/SpecFlow.VS) extension, maintained by Tricentis.*