build(deps): bump serde from 1.0.215 to 1.0.218

Bumps [serde](https://github.com/serde-rs/serde) from 1.0.215 to 1.0.218.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](serde-rs/serde@v1.0.215...v1.0.218)

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

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

Author: dependabot[bot]

Cargo.lock

@@ -5,7 +5,7 @@ edition = "2021"
 
 [dependencies]
 actix-web = "4.9.0"
-serde = { version = "1.0.215", features = ["derive"] }
+serde = { version = "1.0.218", features = ["derive"] }
 serde_json = "1.0.133"
 reqwest = { version = "0.12", features = ["json"] }
 dotenv = "0.15.0"