GDK pipeline is failing with this error:
```
Downloading rubocop-rspec-1.15.1 revealed dependencies not in the API or the
lockfile (rubocop (>= 0.42.0)).
Either installing with `--full-index` or running `bundle update rubocop-rspec`
should fix the problem.
```
Updated lockfile by running the bundle update.

`gdk install` works now.