Build: change how the target is printed in step names

e.g. `x86_64-windows.win10...win11_dt-gnu` -> `x86_64-windows-gnu`

When the OS version is the default this is redundant with checking the
default in the standard library.
df4068cabdJacob Young committed on 6/19/2025, 3:45:06 PMparentf5a327c
9 files changedLine totals unavailable