chore(deps): Bump syslog_loose from 0.19.0 to 0.21.0 (#19143)

Bumps [syslog_loose](https://github.com/FungusHumungus/syslog-loose) from 0.19.0 to 0.21.0.
- [Commits](https://github.com/FungusHumungus/syslog-loose/commits)

---
updated-dependencies:
- dependency-name: syslog_loose
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

lib/codecs/Cargo.toml

@@ -23,7 +23,7 @@ serde = { version = "1", default-features = false, features = ["derive"] }
 serde_json = { version = "1", default-features = false }
 smallvec = { version = "1", default-features = false, features = ["union"] }
 snafu = { version = "0.7.5", default-features = false, features = ["futures"] }
-syslog_loose = { version = "0.19", default-features = false, optional = true }
+syslog_loose = { version = "0.21", default-features = false, optional = true }
 tokio-util = { version = "0.7", default-features = false, features = ["codec"] }
 tracing = { version = "0.1", default-features = false }
 vrl.workspace = true