[Release][C++] Windows source verification hardcodes Visual Studio version

[asfimport]

verify-release-candidate.bat currently hardcodes the CMake generator to "Visual Studio 16 2019". Ideally it should be able to use any Visual Studio version present on the system.

Reporter: Antoine Pitrou / @pitrou

_{Note: This issue was originally created as ARROW-16321. Please see the migration documentation for further details.}

[asfimport]

Antoine Pitrou / @pitrou:
cc @raulcd @assignUser

[github-actions]

This issue has been marked as stale because it has had no activity in the past 365 days. Please remove the stale label or comment below, or this issue will be closed in 14 days. If this improvement is still desired but has no current owner, please add the 'Status: needs champion' label.