use g5k-deb-build-tools/g5k_dh_ruby_vendorize instead of setup_bundle

3 jobs for g5k_dh_ruby_vendorize in 18 minutes and 2 seconds (queued for 1 second)
Status Job ID Name Coverage
  Lint
passed #1437998
grid5000-docker
rubocop

00:01:33

 
  Test
passed #1437999
grid5000-docker
test-for-buster

00:08:19

80.75%
 
  Deb
passed #1438000
grid5000-docker
deb-for-buster

00:08:10