Sanity check for bad/untracked meta packets

Fixes ViaVersion/ViaVersion#2549
Fixes ViaVersion/ViaVersion#2521

common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_13_2to1_14/packets/EntityPackets1_14.java

@@ -393,6 +393,7 @@ public class EntityPackets1_14 extends LegacyEntityRewriter<Protocol1_13_2To1_14
 
         filter().handler((event, meta) -> {
             EntityType type = event.entityType();
+            if (type == null) return;
             if (type.isOrHasParent(Entity1_14Types.ABSTRACT_ILLAGER_BASE) || type == Entity1_14Types.RAVAGER || type == Entity1_14Types.WITCH) {
                 int index = event.index();
                 if (index == 14) {