chore(deps): update serde_yaml requirement from 0.8.23 to 0.9.19

Updates the requirements on [serde_yaml](https://github.com/dtolnay/serde-yaml) to permit the latest version.
- [Release notes](https://github.com/dtolnay/serde-yaml/releases)
- [Commits](dtolnay/serde-yaml@0.8.23...0.9.19)

---
updated-dependencies:
- dependency-name: serde_yaml
  dependency-type: direct:production
...

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

sentinel-core/Cargo.toml

@@ -44,7 +44,7 @@ time = { version = "0.3.5", features = ["formatting", "macros"] }
 # serialize/deserialize
 serde = { version = "1.0.137", features = ["derive"] }
 serde_json = "1.0.80"
-serde_yaml = "0.8.23"
+serde_yaml = "0.9.19"
 lazy_static = "1.4.0"
 # error
 anyhow = "1.0.51"