fix: Upgrade inquirer to 8.2.7 to fix tmp vulnerability (#11622)
## Summary
- Upgrades `inquirer` from 8.2.4 to 8.2.7 across 4 packages:
create-turbo, @turbo/workspaces, @turbo/gen, @turbo/codemod
- Fixes TURBO-5174: Arbitrary file write via symlink dir parameter in
`tmp` package
## Details
The vulnerability chain was: `inquirer > external-editor > tmp <=0.2.3`
In inquirer 8.2.7, `external-editor` was replaced with
`@inquirer/external-editor`, which removes the `tmp` dependency
entirely. This is a minor version bump with no breaking API changes.
## Testing
- All tests pass for affected packages
- All builds succeed
