This handles an error we see within GitHub Actions that occassionally occurs when downloading resources. We retry in the same way we do when handling HTTPErrors. Change-Id: I4dce5d607ccc41ad53b51e39082c486e644d815c Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71858 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Maintainer: Jason Lowe-Power <power.jg@gmail.com>