Bump clap from 4.3.19 to 4.3.21

Bumps [clap](https://github.com/clap-rs/clap) from 4.3.19 to 4.3.21.
- [Release notes](https://github.com/clap-rs/clap/releases)
- [Changelog](https://github.com/clap-rs/clap/blob/master/CHANGELOG.md)
- [Commits](clap-rs/clap@v4.3.19...v4.3.21)

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

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

Cargo.toml

@@ -10,7 +10,7 @@ license = "Apache-2.0"
 [dependencies]
 actix-web = { version = "4.3.1" }
 async-trait = { version = "0.1.72" }
-clap = { version = "4.3.19", features = ["cargo", "derive", "env"] }
+clap = { version = "4.3.21", features = ["cargo", "derive", "env"] }
 derive_more = { version = "0.99.0" }
 dyn-clone = { version = "1.0.12" }
 env_logger = { version = "0.10.0" }