Bump log from 0.4.21 to 0.4.22

Bumps [log](https://github.com/rust-lang/log) from 0.4.21 to 0.4.22.
- [Release notes](https://github.com/rust-lang/log/releases)
- [Changelog](https://github.com/rust-lang/log/blob/master/CHANGELOG.md)
- [Commits](rust-lang/log@0.4.21...0.4.22)

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

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

Author: dependabot[bot]

Cargo.lock

@@ -39,7 +39,7 @@ rtic-monotonics = { version = "2.0", features = ["cortex-m-systick"] }
 rand_core = "0.6"
 mono-clock = "0.1"
 cortex-m-log = { version = "0.8.0", features = ["log-integration"] }
-log = "0.4.21"
+log = "0.4.22"
 heapless = { version = "0.8", features = ["serde"] }
 bit_field = "0.10.2"
 debounced-pin = "0.3.0"