[FEATURE] New Flavor for modern Java version

[Eydamos]

Feature

Currently only Java 8 can be used. Even though it is still a highly used version and should therefore not be replaced it would be nice to also have a modern flavor e.g. Java 21 which apparently allows more.
E.g. if I put \p{M}\p{P} into the regex field and switch to Java 8 it shows me This script is unknown/invalid. Even though it works fine in my Java 21 application. So either the flavor is wrong in showing this warning or it is only supported in a higher Java version.