Split Fantom workflow into separate build and test jobs (#54729)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/54729

Changelog: [Internal]

- Created new build-fantom-runner action to compile the Fantom runner binary
- Modified run-fantom-tests action to download and use pre-built binary
- Updated test-all.yml workflow to run build and test as separate jobs
- Removed build dependencies and ccache configuration from test job

Reviewed By: cortinico

Differential Revision: D88012198

fbshipit-source-id: cd1c91b18cccc3c62b9edbcbeb131e80551369f1