Build: Update gradle to 8.5

ref: https://docs.gradle.org/current/userguide/upgrading_version_5.html https://docs.gradle.org/current/userguide/upgrading_version_6.html https://docs.gradle.org/current/userguide/upgrading_version_7.html https://docs.gradle.org/current/userguide/java_library_plugin.html