Update env_logger requirement from 0.5 to 0.6
Update env_logger requirement from 0.5 to 0.6

Updates the requirements on [env_logger](https://github.com/sebasmagri/env_logger) to permit the latest version.
- [Release notes](https://github.com/sebasmagri/env_logger/releases)
- [Commits](https://github.com/sebasmagri/env_logger/commits/v0.6.0)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
gears-project/gears-core-rust,michiel/xflow-rust,michiel/xflow-rust,gears-project/gears-core-rust,gears-project/gears-core-rust,michiel/xflow-rust