build(deps): bump serde in /third_party/sdmmparser/src

Bumps [serde](https://github.com/serde-rs/serde) from 1.0.188 to 1.0.189.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](serde-rs/serde@v1.0.188...v1.0.189)

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

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

third_party/sdmmparser/src/Cargo.toml

@@ -9,7 +9,7 @@ path = "lib.rs"
 crate-type = ["staticlib"]
 
 [dependencies]
-serde = "1.0.188"
+serde = "1.0.189"
 serde_derive = "1.0.137"
 serde_json = "1.0.107"
 png = "0.17.9"