serv4 + submodule update (#12740)

Co-authored-by: DrSmugleaf <DrSmugleaf@users.noreply.github.com>

Content.Shared/Decals/DecalGridComponent.cs

@@ -7,6 +7,7 @@ namespace Content.Shared.Decals
         [DataField("chunkCollection", serverOnly: true)]
         public DecalGridChunkCollection ChunkCollection = new(new ());
 
+        [DataRecord]
         public record DecalGridChunkCollection(Dictionary<Vector2i, Dictionary<uint, Decal>> ChunkCollection)
         {
             public uint NextUid;