Hi,

Whilst working on the Reproducible Builds effort [0], we noticed that
python-msgspec could not be built reproducibly.

This is because if the tests are run, the binary .deb ends up with a
benchmarks/ directory. Therefore, if the tests are skipped, the contents
of the package will differ.

A patch is attached that removes this directory after running the
tests.

 [0] https://reproducible-builds.org/


Regards,