we can't run specifically the handleUserDeleteCheck tests concurrently due to one of the tests modifying the config in the shared database
if run concurrently you can get race conditions where the other tests pick up the change, even with resetting the config in the beforeEach
therefore the test that checks a delete actually happens, fails
there are many ways to solve this, disabling concurrency for the suite, forcing sequential tests for just handleUserDeleteCheck, increasing the delete test deletedAt to more than the custom duration tests deleteDelay
I applied all three of these. You could also force all the user tests to run in their own databases, but that feels overkill
* use exiftool for file date metadata
* handle tag not existing in exifinfo (?)
* update medium tests
* fix typo
* set file size too
* set file size only if undefined
