chore: Bump version to 0.2.5

Prepare for release v0.2.5 with Windows library name fix.

Changes:
- Update README.md version from 0.2.4 to 0.2.5

This release includes:
- Fix for GitHub Actions Windows build (librandomx.dll naming)
- Updated documentation for MinGW Makefiles behavior
- Consistent cross-platform library naming conventions

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: LucasMLK

README.md

@@ -116,7 +116,7 @@ To include `xdagj-native-randomx` in your project, add the following dependency
 <dependency>
     <groupId>io.xdag</groupId>
     <artifactId>xdagj-native-randomx</artifactId>
-    <version>0.2.4</version>
+    <version>0.2.5</version>
 </dependency>
 ```