JDK11: fix: ServiceProcessor

assira/src/main/java/net/ranides/assira/annotations/JavaServiceProcessor.java

@@ -43,7 +43,7 @@ import net.ranides.assira.collection.maps.MultiMap;
 @SupportedAnnotationTypes(
     "net.ranides.assira.annotations.Meta.JavaService"
 )
-@SupportedSourceVersion(SourceVersion.RELEASE_8)
+@SupportedSourceVersion(SourceVersion.RELEASE_11)
 public class JavaServiceProcessor extends AbstractProcessor {
     
     @Override