build: Bump serde from 1.0.203 to 1.0.208

Bumps [serde](https://github.com/serde-rs/serde) from 1.0.203 to 1.0.208.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](https://github.com/serde-rs/serde/compare/v1.0.203...v1.0.208)

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

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

event_monitor/Cargo.toml

@@ -8,5 +8,5 @@ version = "0.1.0"
 flume = "0.11.0"
 libc = "0.2.155"
 once_cell = "1.19.0"
-serde = { version = "1.0.197", features = ["derive", "rc"] }
+serde = { version = "1.0.208", features = ["derive", "rc"] }
 serde_json = "1.0.120"