openjdk: Enhance String handling (Oracle CPU 2025-10)

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE component: Libraries. Supported versions that are affected are Oracle Java SE: 21.0.8 and 25; Oracle GraalVM for JDK: 21.0.8; Oracle GraalVM Enterprise Edition: 21.3.15...