Noisy GitHub Action logs with MountedService and Files

[twilit swan]

I noticed that the mounted service / small test files keep building up, making a lot of noise

https://github.com/hofstadter-io/hof/actions/runs/6057421223/job/16438562020#step:8:323

(you can see the blue text keeps getting an additional line added to it for each test, listing all previous tests run (files mounted))

This makes it very hard to find the error in the logs, by the end, there is a full screen of blue text between the actual test output I care about