Support GraalVM >= 21.2.0

[plata]

The Nashorn compatibility changed to ECMAScript 5, see changelog. Therefore, e.g. several Array related methods like flatMap() do not work anymore (see also this comment).

It might be sufficient to set the ES version in:

phoenicis/phoenicis-scripts/src/main/java/org/phoenicis/scripts/engine/ScriptEngineType.java

Line 16 in 16143ae

Map.of("js.nashorn-compat", "true",

Similar to:

Bindings bindings = engine.getBindings(ScriptContext.ENGINE_SCOPE);
bindings.put("polyglot.js.ecmascript-version", "2017");

see #2522, #2525, PhoenicisOrg/scripts#1256