Misidentified Rails/Rake setup

[AlexB52]

Retest thinks we're dealing with a rails repository when it is, in fact, a rake setup (via bundler): https://github.com/AlexB52/uni_rails

workaround: Specifying --rake does the trick for now.

retest --notify --all --rake

[AlexB52]

Maybe we need to look at the Gemfile instead of the Gemfile.lock