Pull request #268: DEM-13840 Updating Release date

Merge in OP/openkit-java from feature/DEM-13840-openkit-java-adapt-openkit-bizevent-schema-version-to-1.3-2 to main

* commit '1e8861d1439e9a7fc5611905964930612b8e2c30':
  DEM-13840 Updating Release date

GitOrigin-RevId: 57e7c95afc7d8bb8ab7f9c62fbd38ee3e8b257e9

Author: TheHighriser

CHANGELOG.md

@@ -2,7 +2,7 @@
 
 ## [Unreleased](https://github.com/Dynatrace/openkit-java/compare/v3.4.0...HEAD)
 
-## 3.4.0 [Release date: 2026-01-28]
+## 3.4.0 [Release date: 2026-03-13]
 [GitHub Releases](https://github.com/Dynatrace/openkit-java/releases/tag/v3.4.0)
 
 ### Changed