Bump itertools from 0.9.0 to 0.10.0

Bumps [itertools](https://github.com/bluss/rust-itertools) from 0.9.0 to 0.10.0.
- [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] <[email protected]>

Author: dependabot[bot]

Cargo.lock

@@ -19,7 +19,7 @@ path = "src/main.rs"
 [dependencies]
 aoc-runner = "0.3.0"
 aoc-runner-derive = "0.3.0"
-itertools = "0.9.0"
+itertools = "0.10.0"
 lazy_static = "1.4.0"
 lexical = "5.2.0"
 regex = "1.4.2"