Bump log from 0.4.20 to 0.4.21

Bumps [log](https://github.com/rust-lang/log) from 0.4.20 to 0.4.21.
- [Release notes](https://github.com/rust-lang/log/releases)
- [Changelog](https://github.com/rust-lang/log/blob/master/CHANGELOG.md)
- [Commits](rust-lang/log@0.4.20...0.4.21)

---
updated-dependencies:
- dependency-name: log
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Cargo.toml

@@ -26,7 +26,7 @@ chrono = { version = "0.4", features = ["serde"] }
 rustix = { version = "0.38.28", features = ["system"] }
 serde_yaml = "0.9"
 thiserror = "1.0"
-log = "0.4.20"
+log = "0.4.21"
 env_logger = "0.8.4"
 lazy_static = "1.4.0"
 timerfd = "1.3.0"