Bump serde from 1.0.136 to 1.0.137 (#1229)

Bumps [serde](https://github.com/serde-rs/serde) from 1.0.136 to 1.0.137.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](https://github.com/serde-rs/serde/compare/v1.0.136...v1.0.137)

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

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

parachain-template/node/Cargo.toml

@@ -18,7 +18,7 @@ clap = { version = "3.1", features = ["derive"] }
 derive_more = "0.99.2"
 log = "0.4.16"
 codec = { package = "parity-scale-codec", version = "3.0.0" }
-serde = { version = "1.0.132", features = ["derive"] }
+serde = { version = "1.0.137", features = ["derive"] }
 hex-literal = "0.3.4"
 jsonrpc-core = "18.0.0"