Bump serde from 1.0.120 to 1.0.122 in /blacksmith

Bumps [serde](https://github.com/serde-rs/serde) from 1.0.120 to 1.0.122.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](serde-rs/serde@v1.0.120...v1.0.122)

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

Author: dependabot-preview[bot]

blacksmith/Cargo.lock

@@ -12,7 +12,7 @@ env_logger = "0.8.2"
 log = "0.4.13"
 regex = "1.4.3"
 reqwest = { version = "0.11", features = ["blocking"] }
-serde = { version = "1.0.120", features = ["derive"] }
+serde = { version = "1.0.122", features = ["derive"] }
 serde_json = "1.0.61"
 toml = "0.5.8"