deps: bump serde from 1.0.217 to 1.0.218

Bumps [serde](https://github.com/serde-rs/serde) from 1.0.217 to 1.0.218.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](serde-rs/serde@v1.0.217...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

@@ -68,7 +68,7 @@ rust-ipns = { version = "0.7.0", path = "packages/rust-ipns" }
 rust-unixfs = { version = "0.5.0", path = "unixfs" }
 sec1 = { version = "0.7.3", features = ["pem", "pkcs8"] }
 send_wrapper = "0.6.0"
-serde = { version = "1.0.215" }
+serde = { version = "1.0.218" }
 serde_ipld_dagcbor = "0.6.1"
 serde_ipld_dagjson = "0.2.0"
 serde_json = { version = "1.0.138" }