Update LICENSE (#2597)

Filling in the license to what I think it should be. We're adding this to our list of third party libraries

Author: cpheinrich

LICENSE

@@ -186,7 +186,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright [yyyy] [name of copyright owner]
+   Copyright 2023 The Nerfstudio Team
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.