Update color-backtrace requirement from 0.5.1 to 0.6.1

Updates the requirements on [color-backtrace](https://github.com/athre0z/color-backtrace) to permit the latest version.
- [Changelog](https://github.com/athre0z/color-backtrace/blob/master/CHANGELOG.md)
- [Commits](athre0z/color-backtrace@v0.5.1...v0.6.1)

---
updated-dependencies:
- dependency-name: color-backtrace
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Cargo.toml

@@ -32,7 +32,7 @@ defmt = { version = "0.3", optional = true}
 log = { version = "0.4", default-features = false, optional = true }
 
 [dev-dependencies]
-color-backtrace = "0.5.1"
+color-backtrace = "0.6.1"
 
 [[bin]]
 name = "sx1231-util"