Handle lowercase->uppercase of hermes ios artifacts (#44836)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/44836

Sometimes, GHA creates artifacts with lowercase Debug/Release. Make sure that if it happen, we uppercase them.

## Changelog
[Internal] - Handle lowercase->uppercase of hermes ios artifacts

Reviewed By: cortinico

Differential Revision: D58290049

fbshipit-source-id: c1e76e9e5718500378ba08d26d5c4dd0620c78c4