fix: bad null annotations on legacy conversion

bukkit/src/main/java/net/william278/husksync/util/BukkitLegacyConverter.java

@@ -53,9 +53,9 @@ public class BukkitLegacyConverter extends LegacyConverter {
         super(plugin);
     }
 
-    @NotNull
     @Override
-    public DataSnapshot.Packed convert(byte[] data, @NotNull UUID id,
+    @NotNull
+    public DataSnapshot.Packed convert(byte @NotNull [] data, @NotNull UUID id,
                                        @NotNull OffsetDateTime timestamp) throws DataAdapter.AdaptionException {
         final JSONObject object = new JSONObject(plugin.getDataAdapter().bytesToString(data));
         final int version = object.getInt("format_version");

common/src/main/java/net/william278/husksync/util/LegacyConverter.java

@@ -36,7 +36,7 @@ public abstract class LegacyConverter {
     }
 
     @NotNull
-    public abstract DataSnapshot.Packed convert(@NotNull byte[] data, @NotNull UUID id,
+    public abstract DataSnapshot.Packed convert(byte @NotNull [] data, @NotNull UUID id,
                                                 @NotNull OffsetDateTime timestamp) throws DataAdapter.AdaptionException;
 
 }