Fix ruby keyword warning in gitlab_experiment.rb
What does this MR do?
Fix ruby keyword warning in gitlab_experiment.rb
DEPRECATION WARNING: /Users/tkuah/code/ee-gdk/gitlab/spec/support/gitlab_experiment.rb:10: warning: Using the last argument as keyword parameters is deprecated; maybe ** should be added to the call
/Users/tkuah/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/gitlab-experiment-0.4.8/lib/gitlab/experiment.rb:57: warning: The called method `initialize' is defined here
(called from initialize at /Users/tkuah/code/ee-gdk/gitlab/spec/support/gitlab_experiment.rb:10)
Related issue: #257438 (closed)