dillon1000/react

Updated Copyright comment from Facebook to Meta (#26833)

## Summary
Changed the comment in react/packages/react
/react.shared-subset.js saying 
```
Copyright (c) Facebook, Inc. and affiliates ..
```
To 
```
Copyright (c) Meta Platforms, Inc. and affiliates ..
```
as raised in the following issues:
https://github.com/facebook/react/issues/26829

Files Changed: 
react/packages/react/react.shared-subset.js

## How did you test this change?

Tests Required: No