Bump clap from 3.2.7 to 3.2.21

Bumps [clap](https://github.com/clap-rs/clap) from 3.2.7 to 3.2.21.
- [Release notes](https://github.com/clap-rs/clap/releases)
- [Changelog](https://github.com/clap-rs/clap/blob/v3.2.21/CHANGELOG.md)
- [Commits](clap-rs/clap@v3.2.7...v3.2.21)

---
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

@@ -17,7 +17,7 @@ maintenance = { status = "actively-developed" }
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-clap = { version = "3.2.7", features = ["derive", "env", "wrap_help"] }
+clap = { version = "3.2.21", features = ["derive", "env", "wrap_help"] }
 clap-verbosity-flag = "1.0.1"
 exitcode = "1.1.2"
 toml = "0.5.9"
@@ -35,7 +35,7 @@ maplit = "1.0.2"
 pretty_assertions = "1.2.1"
 
 [build-dependencies]
-clap = { version = "3.2.7", features = ["derive", "env", "wrap_help"] }
+clap = { version = "3.2.21", features = ["derive", "env", "wrap_help"] }
 clap-verbosity-flag = "1.0.1"
 clap_mangen = "0.1.10"
 clap_complete = "3.2.3"