Update itertools requirement from 0.12 to 0.13 (arkworks-rs#829)

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@v0.12.0...v0.12.1)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Marcin <marcin.gorny.94@protonmail.com>

Cargo.toml

@@ -57,7 +57,7 @@ derivative = "2"
 digest = { version = "0.10", default-features = false }
 hashbrown = "0.14"
 hex = "0.4"
-itertools = { version = "0.12", default-features = false }
+itertools = { version = "0.13", default-features = false }
 libtest-mimic = "0.7.0"
 paste = "1.0"
 rayon = "1"