chore(deps): 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>

socketio/Cargo.toml

@@ -27,7 +27,7 @@ url = "2.4.1"
 tokio = { version = "1.36.0", optional = true }
 futures-util = { version = "0.3", default-features = false, features = ["sink"], optional = true }
 async-stream = { version = "0.3.5", optional = true }
-log = "0.4.20"
+log = "0.4.21"
 serde = "1.0.197"
 
 [dev-dependencies]