[Feature] Support dev builds

[bademux]

Thanks for great life-simplifier it is really helpful!
Unfortunately dev builds are not supported by plugin due to different naming convention (please note lack of "vm-" prefix):
https://github.com/graalvm/graalvm-ce-dev-builds/releases/download/20.2.0-dev-20200718_0205/graalvm-ce-java11-linux-amd64-20.2.0-dev.tar.gz
Please allow to provide full link to graalvm package, since graalvm is dynamically growing solution less general solution is more acceptable.
Providing local installation will be also an option.

Thanks!