Flaky test

[lukasturcani]

https://github.com/nomad-nmr/nomad-server/actions/runs/11308614919/job/31451630057

I notice that this test randomly fails, and then fixes itself, without me touching any code that should affect it. I've not been able to reproduce this locally -- just seems to happen in CI

[lukasturcani]

https://github.com/nomad-nmr/nomad-server/actions/runs/11308996249/job/31452395383?pr=148

here i added an empty file and zero code changes -- test still fails

[tomlebl]

@lukasturcani I know about this but can't figure it out. It seems to happen only in GitHub actions environment probably related to the way the tests are executed there.
I have got a similar problem now when building production docker image fails when executed by action. In my local environment the build works.