Update itertools requirement from 0.9.0 to 0.10.0

Updates the requirements on [itertools](https://github.com/bluss/rust-itertools) to permit the latest version.
- [Release notes](https://github.com/bluss/rust-itertools/releases)
- [Changelog](https://github.com/rust-itertools/itertools/blob/master/CHANGELOG.md)
- [Commits](rust-itertools/itertools@v0.9.0...v0.10.0)

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

language/Cargo.toml

@@ -21,7 +21,7 @@ path = "src/main.rs"
 hacspec-util = { path = "../utils/util", version = "0.1.0-beta.1" }
 pretty = "0.10.0"
 im = "15.0.0"
-itertools = "0.9.0"
+itertools = "0.10.0"
 lazy_static = "1.4.0"
 walkdir = "2.3.1"
 serde_json = "1.0"