Raise existing level.dat data size quota

It appears that custom data may push it to be higher than
what the default quota allows for.

See https://mojira.dev/MC-307144

Fixes #13820

Author: Spottedleaf

paper-server/patches/sources/net/minecraft/world/level/storage/LevelStorageSource.java.patch

@@ -15,7 +15,7 @@
                  .mapOrElse(
                      Function.identity(),
                      error -> {
-@@ -174,9 +_,9 @@
+@@ -174,13 +_,13 @@
      }
 
      public static <T extends SavedData> DataResult<T> readExistingSavedData(
@@ -27,6 +27,11 @@
 
          CompoundTag fileContents;
          try {
+-            fileContents = NbtIo.readCompressed(dataLocation, NbtAccounter.defaultQuota());
++            fileContents = NbtIo.readCompressed(dataLocation, NbtAccounter.create(net.minecraft.nbt.NbtAccounter.DEFAULT_NBT_QUOTA * 50L)); // Paper - raise quota to account for custom data
+         } catch (IOException var6) {
+             return DataResult.error(var6::getMessage);
+         }
 @@ -396,7 +_,7 @@
 
      public LevelStorageSource.LevelStorageAccess validateAndCreateAccess(final String levelId) throws IOException, ContentValidationException {