Fix another test impacted by #157364. On Windows, `GetComputerNameA()`, which is what this ends up calling, takes an `LPDWORD`, but we were handing it an `int*`; fix this by declaring it as a `DWORD` instead.
Fix another test impacted by #157364. On Windows, `GetComputerNameA()`, which is what this ends up calling, takes an `LPDWORD`, but we were handing it an `int*`; fix this by declaring it as a `DWORD` instead.