[Feature Request] Support mirror URL prefix environment variable

[betgar]

Hello, thank you very much for your work. I would like to make a small request. In situations with limited internet access, downloading binary packages from GitHub is very slow and often fails. I hope you can add support for an environment variable parameter for a mirror prefix, allowing downloads from a mirror address.

example: "CYPRESS_DOWNLOAD_PATH_TEMPLATE": "https://cdn.npmmirror.com/binaries/cypress/${version}/${platform}-${arch}/cypress.zip",

[levivilet]

Now implemented via #62

Thanks!

[fengmk2]

@levivilet Any plans to release a new version to npm?

[levivilet]

It's already published v3.1.0: