build(deps): update itertools requirement from 0.9 to 0.12

Updates the requirements on [itertools](https://github.com/rust-itertools/itertools) to permit the latest version.
- [Changelog](https://github.com/rust-itertools/itertools/blob/master/CHANGELOG.md)
- [Commits](rust-itertools/itertools@v0.9.0...v0.12.1)

---
updated-dependencies:
- dependency-name: itertools
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Cargo.toml

@@ -13,7 +13,7 @@ approx = "0.4"
 bio = "0.39"
 clap = { version = "2.31", features = ["yaml", "color", "suggestions"]}
 indicatif = "0.11"
-itertools = "0.9"
+itertools = "0.12"
 log = "0.4.6"
 fern = "0.5.7"
 rust-htslib = "0.46.0"