Update colored requirement from = 2.1.0 to = 3.0.0

Updates the requirements on [colored](https://github.com/mackwic/colored) to permit the latest version.
- [Release notes](https://github.com/mackwic/colored/releases)
- [Changelog](https://github.com/colored-rs/colored/blob/master/CHANGELOG.md)
- [Commits](colored-rs/colored@v2.1.0...v3.0.0)

---
updated-dependencies:
- dependency-name: colored
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Cargo.toml

@@ -23,4 +23,4 @@ thiserror = "1.0"
 [dev-dependencies]
 assert_matches = "1.5"
 mockito = "= 1.5.0"
-colored = "= 2.1.0"
+colored = "= 3.0.0"