[jsscripting] Close GraalJSScriptEngine when closing OpenhabGraalJSScriptEngine

Fixes openhab#18224.

Signed-off-by: Florian Hotze <[email protected]>

Author: florian-h05

bundles/org.openhab.automation.jsscripting/src/main/java/org/openhab/automation/jsscripting/internal/OpenhabGraalJSScriptEngine.java

@@ -314,8 +314,10 @@ protected Exception afterThrowsInvocation(Exception e) {
     }
 
     @Override
-    public void close() {
+    public void close() throws Exception {
         jsRuntimeFeatures.close();
+        // we must not close the engine before closing the runtime features, otherwise the runtime features cannot be closed properly
+        super.close();
     }
 
     /**