test: update CI test.yml to use newest version of the dependencies

[requiemformemories]

Currently, the CI tests are encountering numerous failures. Based on our observations:

• If unit and functional tests are run together, 30 functional tests fail.
• If run separately, they pass in the local environment but fail in the CI environment (the following four).
• ActiveRecord tests can pass but frequently timeout.

Therefore, we are making the following adjustments:

• Separate the unit and functional tests in CI.
• Cancel ActiveRecord tests to avoid resource consumption. We are not using ActiveRecord as our client as well.

Currently, the following four tests are still failing:

rspec ./spec/functional/pushy_spec.rb:17 # Pushy deliveres a notification successfully
rspec ./spec/functional/pushy_spec.rb:21 # Pushy is expected to change `notification.reload.external_device_id` to "5a622ae5813e2875bfdbe496"
rspec ./spec/functional/webpush_spec.rb:20 # Webpush deliveres a notification successfully
rspec ./spec/functional/webpush_spec.rb:26 # Webpush when delivery failed marks a notification as failed