Update itertools requirement from 0.11 to 0.12 (#27)

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@v0.11.0...v0.12.0)

---
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>

reed-solomon-benches/Cargo.toml

@@ -15,7 +15,7 @@ reed-solomon-tester = { package = "reed-solomon-tester", path = "../reed-solomon
 color-eyre = "0.6"
 
 rand = { version = "0.8", features = ["alloc", "small_rng"] }
-itertools = "0.11"
+itertools = "0.12"
 assert_matches = "1"
 
 [dev-dependencies]

reed-solomon-novelpoly/Cargo.toml

@@ -31,7 +31,7 @@ reed-solomon-tester = { path = "../reed-solomon-tester", optional = true }
 rand = { version = "0.8.3", features = ["alloc", "small_rng"], optional = true }
 
 [dev-dependencies]
-itertools = "0.11"
+itertools = "0.12"
 reed-solomon-tester = { path = "../reed-solomon-tester" }
 rand = { version = "0.8.3", features = ["alloc", "small_rng"] }
 assert_matches = "1.5.0"

reed-solomon-tester/Cargo.toml

@@ -11,5 +11,5 @@ fs-err = "2"
 
 [dependencies]
 rand = { version = "0.8", features = ["alloc", "small_rng"] }
-itertools = "0.11"
+itertools = "0.12"
 assert_matches = "1"