Stale issues more frequently (4 times a day) (#36130)

Summary:
Our stale bot is at capacity and reaches quota, resulting in marking as stale 2/3 issues a day.
I'm increasing the frequency of the bot to 4 times a day.

## Changelog

Changelog:
[Internal] [Changed] - Stale issues more frequently (4 times a day)

Pull Request resolved: https://github.com/facebook/react-native/pull/36130

Test Plan: nothing to test

Reviewed By: cipolleschi

Differential Revision: D43207979

Pulled By: cortinico

fbshipit-source-id: 1de45315e724ddf9afdb9426eddc639875ba0b24