Github action deploys shaded release and unshaded release even if compiler tests fail

[jurgenvinju]

Describe the bug

I'm not sure if this is supposed to happen, but mvn release:prepare will execute a deployment of the rascal.jar and the rascal-unshaded.jar to releases.usethesource.io, even if the compiler tests fail.

@DavyLandman pls close this issue if this is a temporary acceptible situation.