Bump serde

Bumps [serde](https://github.com/serde-rs/serde) from 1.0.198 to 1.0.207.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](serde-rs/serde@v1.0.198...v1.0.207)

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

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

exercises/4-multitasking/3-asynchronous-multitasking/3-measurement-data-sink/Cargo.toml

@@ -6,7 +6,7 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-serde = { version = "1.0.197", features = ["derive"] }
+serde = { version = "1.0.207", features = ["derive"] }
 serde_json = "1.0.116"
 anyhow = "1.0.82"
 csv = "1.3.0"