GitHub actions integration logs are hard to read

[niraymak]

Is your feature request related to a problem? Please describe.
In GitHub actions the integration tests log a lot of lines in the console which makes it hard to see the what went wrong.

Describe the solution you'd like
A lot of the logged lines are unneccessary. Maybe we can consider to only log the results in GitHub actions.

Production URL
https://github.com/DigitalExcellence/dex-backend/pull/391/checks?check_run_id=2031295751

Additional context
We currently use the Postman CLI runner called Newman.
https://learning.postman.com/docs/running-collections/using-newman-cli/command-line-integration-with-newman/

[TomiEckert]

Newman uses reporters to output the results (file or console). There are some built in reporter options, which can work here:

• --reporter-cli-no-console: this removes the garbage and javascript stuff, only leaves the results
• --reporter-cli-no-success-assertions: this one removes the green ticks on successful requests

After these, reports go from ~45 to ~5 lines per test. This means an output of ~6.5k lines instead of 58k.

--reporter-cli-no-banner: can be helpful if the json collection will be split up into multiple smaller ones based on #364.

It's also possible to completely ignore the successful tests and only show the failed ones, but one needs to implement a custom reporter for Newman.