[CI] `test-overwrite-test-timestamp` / `test-timestamp` fails intermittently on macOS intel

[iamazeem]

Failing workflow: https://github.com/liquidaty/zsv/actions/runs/19560581770/job/56012074360

test-overwrite-test-timestamp: 
test-timestamp: Failed!
make[3]: *** [test-timestamp] Error 1
make[2]: *** [test-overwrite] Error 2

[iamazeem]

Failing workflow: https://github.com/liquidaty/zsv/actions/runs/19624904911/job/56191846111#step:5:1385