Disable color for formatter file output

[StantonMatt]

Description

Addresses the default formatter-output behavior from #1288.

Console formatters now decide default coloring from their own output stream. That means a command like --format pretty --out pretty.txt --format progress can keep the progress formatter colored on a TTY while writing plain text to pretty.txt.

Explicit --color and --no-color still override the output destination.

Type of change

• Bug fix (non-breaking change which fixes an issue)

Checklist:

• Tests have been added for any changes to behaviour of the code
• bundle exec rubocop reports no offenses
• CHANGELOG.md has been updated

Checked locally:

• bundle exec rspec
• bundle exec cucumber --publish-quiet
• bundle exec rspec spec/cucumber/formatter/console_spec.rb spec/cucumber/formatter/console_counts_spec.rb spec/cucumber/cli/configuration_spec.rb
• bundle exec rspec compatibility/spec -f d
• bundle exec rubocop