Fix/dev utils certs

[norling]

Updates the dev environment with a dedicated service for certificate handling, as well as updating some versions.

Edit: This ended up with rewriting the way tests are run to make them work with the new way certificates are handled... now you can run tests with:

docker compose run tests

and

docker compose run integration_tests

.

[codecov-commenter]

Codecov Report

Merging #289 (e532143) into master (0686961) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #289   +/-   ##
=======================================
  Coverage   72.83%   72.83%           
=======================================
  Files           7        7           
  Lines         924      924           
=======================================
  Hits          673      673           
  Misses        209      209           
  Partials       42       42           

Flag	Coverage Δ
unittests	72.83% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[aaperis]

if you like, consider adding the testing compose commands to the dev_utils readme for completeness, but otherwise it looks good to me :-)

[aaperis]

looks great :-)