Add 0.70.13 changelog (#38662)

Summary:
Adds changelog for the new 0.70.13 patch.

## Changelog:

<!-- Help reviewers and the release process by writing your own changelog entry. For an example, see:
https://reactnative.dev/contributing/changelogs-in-pull-requests
-->

[Internal] [Changed] - Add 0.70.13 changelog

Pull Request resolved: https://github.com/facebook/react-native/pull/38662

Test Plan: N/A

Reviewed By: cortinico

Differential Revision: D47865844

Pulled By: rshest

fbshipit-source-id: d9a8633baec0a9e08c63d458d4d3b601bfd997fd