build: raise Java source/target to 25

Align compileJava options.release with the Java 25 toolchain.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: cristianrcv

build.gradle

@@ -155,7 +155,7 @@ tasks.register('buildInfo') {
 }
 
 tasks.named('compileJava') {
-    options.release = 21
+    options.release = 25
     options.compilerArgs += ["-Aproject=${project.name}"]
     dependsOn tasks.named('buildInfo')
 }