chore: bump const_format from 0.2.20 to 0.2.21 (#20058)

Bumps [const_format](https://github.com/rodrimati1992/const_format_crates) from 0.2.20 to 0.2.21.
- [Release notes](https://github.com/rodrimati1992/const_format_crates/releases)
- [Changelog](https://github.com/rodrimati1992/const_format_crates/blob/master/Changelog.md)
- [Commits](https://github.com/rodrimati1992/const_format_crates/commits/0.2.21)

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

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cli/Cargo.toml

@@ -16,7 +16,7 @@ clap = "2.33.1"
 criterion-stats = "0.3.0"
 ctrlc = { version = "3.1.9", features = ["termination"] }
 console = "0.14.1"
-const_format = "0.2.20"
+const_format = "0.2.21"
 log = "0.4.14"
 humantime = "2.0.1"
 num-traits = "0.2"