fix: add JVM opens flags for JDK 25 compatibility

Author: eSlider

gradle.properties

@@ -1,5 +1,5 @@
 # Project-wide Gradle settings.
-org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
+org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8 --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED
 # Use Java 21 toolchain for compilation (Android Gradle Plugin compatibility)
 org.gradle.java.installations.auto-detect=true
 org.gradle.java.installations.auto-download=true