v1.34.0 -- experimental corepack support

Minor Changes

• Add --corepack-enabled flag for automatically enabling corepack on fnm install (#960) @Schniz

Patch Changes

• modernize tty check (#973 by @tottoto) (48b2611) @Schniz

• use cygwinpath to make the path posix-like on Windows Bash usage (#960)

• capitalize "n" to show default (#963 by @Joshuahuahua) (48b2611)