Disable incremental on-demand compiling in test environment

When running feature tests, am getting failures related to this:

$ bin/rspec spec/features/projects/environments/environments_spec.rb 
Run options: include {:focus=>true}

All examples were filtered out; ignoring {:focus=>true}
==> Gitaly set up in 24.623682 seconds...

Test environment set up in 34.112482 seconds
Starting the Capybara driver server...
autoprefixer: /Users/tkuah/code/gdk-ee/gitlab/app/assets/stylesheets/application.scss:23714:3: Replace text-decoration-skip: ink to text-decoration-skip-ink: auto, because spec had been changed
autoprefixer: /Users/tkuah/code/gdk-ee/gitlab/app/assets/stylesheets/application.scss:38039:3: start value has mixed support, consider using flex-start instead
Capybara starting Puma...
* Version 5.3.2 , codename: Sweetnighter
* Min threads: 0, max threads: 4
* Listening on unix:///var/folders/gr/1dm_jlrd4g9_724jr3dmrrtm0000gn/T/20211202-72206-17iijmz
F  HTML screenshot: /Users/tkuah/code/gdk-ee/gitlab/tmp/capybara/environments_page_does_have_a_new_environment_button.html
  Image screenshot: /Users/tkuah/code/gdk-ee/gitlab/tmp/capybara/environments_page_does_have_a_new_environment_button.png
............F  HTML screenshot: /Users/tkuah/code/gdk-ee/gitlab/tmp/capybara/environments_page_environments_table_when_there_are_successful_deployments_when_builds_and_manual_ac.html
  Image screenshot: /Users/tkuah/code/gdk-ee/gitlab/tmp/capybara/environments_page_environments_table_when_there_are_successful_deployments_when_builds_and_manual_ac.png
F  HTML screenshot: /Users/tkuah/code/gdk-ee/gitlab/tmp/capybara/environments_page_environments_table_when_there_are_successful_deployments_when_builds_and_manual_ac.html
  Image screenshot: /Users/tkuah/code/gdk-ee/gitlab/tmp/capybara/environments_page_environments_table_when_there_are_successful_deployments_when_builds_and_manual_ac.png
F  HTML screenshot: /Users/tkuah/code/gdk-ee/gitlab/tmp/capybara/environments_page_environments_table_when_there_are_successful_deployments_when_builds_and_manual_ac.html
  Image screenshot: /Users/tkuah/code/gdk-ee/gitlab/tmp/capybara/environments_page_environments_table_when_there_are_successful_deployments_when_builds_and_manual_ac.png
........F  HTML screenshot: /Users/tkuah/code/gdk-ee/gitlab/tmp/capybara/environments_page_environments_table_when_there_are_successful_deployments_when_there_is_a_delayed_j.html
  Image screenshot: /Users/tkuah/code/gdk-ee/gitlab/tmp/capybara/environments_page_environments_table_when_there_are_successful_deployments_when_there_is_a_delayed_j.png
F  HTML screenshot: /Users/tkuah/code/gdk-ee/gitlab/tmp/capybara/environments_page_environments_table_when_there_are_successful_deployments_when_there_is_a_delayed_j.html
  Image screenshot: /Users/tkuah/code/gdk-ee/gitlab/tmp/capybara/environments_page_environments_table_when_there_are_successful_deployments_when_there_is_a_delayed_j.png
F  HTML screenshot: /Users/tkuah/code/gdk-ee/gitlab/tmp/capybara/environments_page_environments_table_when_there_are_successful_deployments_when_there_is_a_delayed_j.html
  Image screenshot: /Users/tkuah/code/gdk-ee/gitlab/tmp/capybara/environments_page_environments_table_when_there_are_successful_deployments_when_there_is_a_delayed_j.png
F  HTML screenshot: /Users/tkuah/code/gdk-ee/gitlab/tmp/capybara/environments_page_environments_table_when_there_are_successful_deployments_when_there_is_a_delayed_j.html
  Image screenshot: /Users/tkuah/code/gdk-ee/gitlab/tmp/capybara/environments_page_environments_table_when_there_are_successful_deployments_when_there_is_a_delayed_j.png
.WARN: Screenshot could not be saved. `page.current_path` is empty.
FF  HTML screenshot: /Users/tkuah/code/gdk-ee/gitlab/tmp/capybara/environments_page_creating_a_new_environment_user_is_a_developer_developer_creates_a_new_environment.html
  Image screenshot: /Users/tkuah/code/gdk-ee/gitlab/tmp/capybara/environments_page_creating_a_new_environment_user_is_a_developer_developer_creates_a_new_environment.png
.....