Sym Links not preserved during deployment

OS: Linux
agent_version: OFFICIAL_1.0-1.1458_rpm

I am giving the code deploy agent a pre-zipped file uploaded to s3 for deployment which contains a number of relative symlinks a few directories deep (using `zip -ry`). I confirmed that the artifact is unzipped correctly on the server and all symlinks are there in the deployment-root, but during the copying of the files from the deployment-root to the app directory, the symlinks are replaced with the actual contents instead of preserving the symlink.

I believe this has to do with the use of Ruby's FileUtils.copy() instead of FileUtils.copyEntry() but have not tested the change yet.

Empieza siguiendo la copia del despliegue desde deployment-root hasta el directorio de la aplicación, centrándote en las llamadas de Ruby FileUtils.copy() y FileUtils.copyEntry() mencionadas en el issue. Reproduce el problema con un artefacto comprimido que contenga symlinks relativos situados a varios directorios de profundidad y, después, verifica que los archivos desplegados sigan siendo symlinks en lugar de contenidos copiados.

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