This should also be a reminder to everyone that you shouldn't be reliant on a single point of failure for your deploys. It's something that we in the Python community have already encountered (and hopefully learned from) due to the historical unreliability of our equivalent package repo, PyPI.
Have an internal repo that's accessible by your deploy servers, which in turn locally caches anything that you might have previously needed to externally fetch.
Have an internal repo that's accessible by your deploy servers, which in turn locally caches anything that you might have previously needed to externally fetch.