Merge branch 'qa-rubymine-runner' into 'master'

Add new runner for the RubyMine gutter

See merge request gitlab-org/gitlab!30629

qa/bin/rubymine

+#!/usr/bin/env ruby
+
+require_relative '../qa'
+
+ARGV.unshift('Test::Instance::All', ENV['GITLAB_URL'], '--')
+
+QA::Scenario
+    .const_get(ARGV.shift)
+    .launch!(ARGV)