How to reproduce:
1. Create and open a new project
2. Add the attached "FirebaseCoreWrapper.tgz" package using the package manager (add package from tarball)
3. Build and deploy to iOS
4. Open finder to compare Framework files (Xcode) amongst the original PackageCache ones (Unity) and notice the symlinks are missed after build
Expected outcome: Symlinks are not missing in the built Xcode project
Actual outcome: Symlinks are missing in the built Xcode project
Reproducible with: 2021.3.37f1, 2022.3.25f1, 2023.3.0b10, 6000.1.1f1
Tested on: macOS (Sonoma 14.4.1, Apple M1 Max)