build(deps): bump serde in /src/rust/sumologic-mock (#752)

Bumps [serde](https://github.com/serde-rs/serde) from 1.0.203 to 1.0.204.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](serde-rs/serde@v1.0.203...v1.0.204)

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

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

Author: dependabot[bot]

src/rust/sumologic-mock/Cargo.lock

@@ -14,7 +14,7 @@ actix-rt = "2"
 anyhow = "1.0.86"
 bytes = "1"
 base64 = "0.22"
-serde = { version = "1.0.203", features = ["derive"] }
+serde = { version = "1.0.204", features = ["derive"] }
 serde_json = "1.0.120"
 clap = { version = "4.5.8", features = ["derive"]}
 timer = "0.2"