Use deserialised row keys in config tables (#7962)

patches/server/Paper-config-files.patch

@@ -2461,9 +2461,9 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +        final BasicConfigurationNode rowKeyNode = BasicConfigurationNode.root(node.options());
 +
 +        for (final Object key : node.childrenMap().keySet()) {
-+            rowKeySerializer.deserialize(rowType, rowKeyNode.set(key));
++            final R rowKey = rowKeySerializer.deserialize(rowType, rowKeyNode.set(key));
 +            final Map<C, V> map = columnValueSerializer.deserialize(mapType, node.node(rowKeyNode.raw()));
-+            map.forEach((column, value) -> table.put((R) rowKeyNode.raw(), column, value));
++            map.forEach((column, value) -> table.put(rowKey, column, value));
 +        }
 +    }
 +