[Windows][Git Bash] `ask` never asks for user input

# Tasks

```rake
namespace :app do
desc "Confirmation"
task :confirmation do
puts <<-WARN
========================================================================
WARNING: You're about to deploy the branch...
#{fetch(:branch)}
========================================================================
Are you sure you want to continue? (y/N)
WARN
ask :value, "N"

if fetch(:value) !~ /^y(es)?$/i
puts "\nDeploy cancelled!"
exit
end
end
end
```

### Expected behavior

When using `ask` ([offcial documentation](https://capistranorb.com/documentation/getting-started/user-input/)), the console should wait for user input.

### Actual behavior

**On Git Bash (Windows)**, When using `ask` ([offcial documentation](https://capistranorb.com/documentation/getting-started/user-input/)) to get user input, the console never stops and automatically uses the default value.

### System configuration

- Windows 10
- **Terminal app: [Git Bash](https://gitforwindows.org/)**

```
$ cap staging doctor

Environment
Ruby ruby 2.4.1p111 (2017-03-22 revision 58053) [x64-mingw32]
Rubygems 3.0.6
Bundler N/A
Command D:/ProgramFiles/Ruby24-x64/bin/cap staging doctor

Gems
capistrano 3.11.2
airbrussh 1.4.0
rake 13.0.0 (update available)
sshkit 1.20.0
net-ssh 5.2.0
capistrano-composer 0.0.6
capistrano-file-permissions 1.0.0
capistrano-symfony 2.0.0.pre.alfa2
```

Reproduce the issue with the provided `cap staging doctor` command on Windows 10 using Git Bash, starting from the `ask` entry point and the linked user-input documentation. Trace why the prompt immediately accepts its default value; done means the console waits for input and honors the entered response without regressing normal confirmation behavior.

Written by the indexing model from the issue text.