System tests not runnable under docker #1347

$ docker compose run test bundle exec rails test test/system
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[SNIP]
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Error:
EventsCalendarSystemTest#test_calendar_tab_loads_and_renders_events_with_javascript:
Selenium::WebDriver::Error::WebDriverError: unable to connect to /root/.cache/selenium/chromedriver/linux64/151.0.7922.47/chromedriver 127.0.0.1:9515: Errno::ECONNREFUSED: Failed to open TCP connection to 127.0.0.1:9515 (Connection refused - connect(2) for "127.0.0.1" port 9515)
    test/system/events_calendar_system_test.rb:18:in `block (2 levels) in <class:EventsCalendarSystemTest>'
    test/test_helper.rb:185:in `block (2 levels) in freeze_time'
    test/test_helper.rb:184:in `block in freeze_time'
    test/test_helper.rb:183:in `freeze_time'
    test/system/events_calendar_system_test.rb:5:in `block in <class:EventsCalendarSystemTest>'