CI specs are failing with chromedriver change

Pipeline: https://gitlab.com/charts/gitlab/-/jobs/158554097

Failure/Error: e = error

          Selenium::WebDriver::Error::SessionNotCreatedError:
            session not created: Chrome version must be between 70 and 73
              (Driver info: chromedriver=73.0.3683.20 (8e2b610813e167eee3619ac4ce6e42e3ec622017),platform=Linux 4.14.48-coreos-r2 x86_64)
          # ./gems/ruby/2.3.0/gems/selenium-webdriver-3.12.0/lib/selenium/webdriver/remote/response.rb:69:in `assert_ok'