This is required as Ghidra 11.2 requires JDK 21.
This is needed as Ghidra 11.2 now requires JDK 21.
Per the [compatibility matrix][1], Gradle 8.5 added full support for JDK 21, and Gradle 8.10.2 (latest release) also fully supports JDK 22 and 23. (JVM 24 is not yet supported.)