Update LICENSE.md, fix copyright license year (graphql-dotnet#4114)

Update LICENSE.md, fix license year

Signed-off-by: JasonnnW3000 <[email protected]>

Author: Jason N. White

LICENSE.md

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2015-2023 Joseph T. McBride, Ivan Maximov, Shane Krueger, et al. All rights reserved.
+Copyright (c) 2015-2025 Joseph T. McBride, Ivan Maximov, Shane Krueger, et al. All rights reserved.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal