Update colored requirement from 1.9.3 to 2.0.0

[dependabot-preview[bot]]

Updates the requirements on colored to permit the latest version.

Changelog

Sourced from colored's changelog.

2.0.0 (July 14, 2020)

• Add support for true colours.
• Alter Color interface to return Cow<'static, str>

1.9.3 (February 24, 2020)

• Fix compilation regression for 1.34.0. Thanks @jlevon for reporting.

1.9.2 (January 11, 2020)

• Exposed ColoredString data through methods for purposes of interrogating the applied colours.
• Increased documentation.

1.9.1 (December 31, 2019)

• Remove deprecated try! macro in codebase
• Reduce allocations in ColoredString impl (PR#65)
• Added "purple" as match in impl FromStr for Color (PR#71)

1.9.0 (November 11, 2019)

• [POSSIBLE_BREAKING CHANGE]: Replace winconsole with winapi:
  • Changes set_virtual_terminal function signature.
• Update dependencies
• Add Dockerfile
• Respect tty discovery for CLICOLOR

1.8.0 (April 30, 2019)

• FEAT: support Windows 10 colors

1.7.0 (January, 2019)

• TECH: update lazy_static
• FEAT: introduce respect for the NO_COLOR environment variable

1.6.1 (July 9, 2018)

• TECH: update lazy_static
• CHORE: fix typos in README and documentation

1.6.0 (October 31, 2017)

• FEAT: introduced bright colors. "hello".bright_blue().on_bright_red();
• FEAT: introduced strikethrough styling. "hello".strikethrough();

1.5.3 (September 28, 2017)

• FEAT: derive Copy and Clone for Color
• FEAT: derive Clone for ColoredString

1.5.2 (July 6, 2017)

• FIX: method Colorize::reversed has been added. Colorize::reverse was a typo, that we will keep for compatibility

Commits

• 015f2a5 update dependencies (#82)
• 5d828f2 Ver 2 (#81)
• 25f29cc Avoid unnecessary copies if there is nothing to escape (#80)
• 18b5ff8 Add support for TrueColor (#78)
• 2b94a69 Fix various warnings and issues (#79)
• 07425ea Fix test failures with --features no-color (#75)
• 5dedbe9 release v1.9.3
• See full diff in compare view

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