Update tty-config requirement from >= 0.3, < 0.5 to >= 0.3, < 0.6

[dependabot-preview]

Updates the requirements on tty-config to permit the latest version.

Changelog

Sourced from tty-config's changelog.

[v0.5.0] - 2021-05-23

Added

• Add :create option to the #write method to control creating any missing directories
• Add :path option to the #write method to specify a custom file path to write to
• Add ability to specify a default value for a missing key in the #delete method
• Add #env_separator for setting a string to separate parts in environment variable name

Changed

• Change #delete to allow removing any subkey of a deeply nested key
• Change #remove to require from keyword
• Change #set_if_empty to use nested key fetching to check for value presence

Fixed

• Fix Marshaller interface to copy extension names to a subclass

Commits

• b123e99 Change performance test to increase factor
• 8531936 Fix the initial version release link in the changelog
• c225b55 Change tagline and link feature list words to sections in the readme
• ee0f22b Change gemspec summary and description
• 7bc585e Add release date to the changelog
• 659dbd8 Change Config class to improve yard documentation
• 8c0c677 Change set_if_empty method to use nested key fetching to check value presence
• 0efeb8c Change remove method to require from keyword
• 8b7c67e Change to arrange properties in alphabetical order in rubocop config
• 79479ec Add a note about the env separator and fix broken links in the readme
• Additional commits viewable in compare view

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