Lock bundler to 1.17 to defer bundler 2.0 upgrade
Lock bundler to 1.17 to defer bundler 2.0 upgrade

We're not quite ready to upgrade bundler to 2.0 across all of our
projects. Locking down to 1.17 to keep things building for a little
while.

Signed-off-by: Mark Anderson <f1b5a91d4d6ad523f2610114591c007e75d15084@chef.io>

chef/chef-server,chef/chef-server,chef/chef-server,chef/chef-server,chef/chef-server,chef/chef-server