Refactor PR workflow into separate test jobs (#6746)

* Creating symlinks instead of modifying PATH

* Don't create a symlink on Windows

* Refactored PR workflow into individual prebuild-specific jobs

* Upgrading prebuild to get fix for Windows spawning

* Minor fixes to the workflow

* Upgrading cocoapods version

* Comitting changes to Podfile.lock

* Running pod-install with --verbose on CI

* Trying the macos-latest-large runner and disabling Pods cache

* Removed the pinning of Cocoapods entirely

* Running android test only if prebuilding succeeds

* Updating ccache keys

* Caching npm is already handled by actions/setup-node@v4

* Fixing ccache when building RNTA for iOS

* Re-enabled cocoa pods caching

* Attempt to cache cocoapods

* Embedding commands directly on CI

* Adjusted job needs