The plugin should allow for downloading the CLI binary from a custom location

[bmuschko]

Some organizations do not want to reach out to the internet for security and reliability reasons in order to download the executable. Instead they want to host the executable in an inhouse repository of some sort. The plugin should allow for providing a custom location to download the executable from there instead of the hard-coded URLs.

https://github.com/snyk/gradle-plugin/blob/master/src/main/java/io/snyk/gradle/plugin/CliDownloader.java#L24-L25

[bmvermeer]

Good point, this first edition was build for open-source uses not so much from a company pov.
I will mark it as an enhancement.
As it is a community project feel free to commit a PR yourself.