Fix Nightlies for Android (#44847)

Summary:
While migrating from CCI to GHA, we mistakenly set the `ORG_GRADLE_PROJECT_reactNativeArchitectures` wrongly. The result was that the nightly was building only 1 architecture for android instead of all of them.

This change fixes that, but asking GHA to build all the architectures when running nightlies

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## Changelog:
[Internal] - Build all the architectures for android when running nightlies

Pull Request resolved: https://github.com/facebook/react-native/pull/44847

Test Plan: Run a nightly from the branch and see it working

Reviewed By: huntie

Differential Revision: D58347697

Pulled By: cipolleschi

fbshipit-source-id: 43a2b83ba9183e6f5a11d1e6f6a27df622ee8cc6