build(deps): bump itertools from 0.14.0 to 0.15.0

Bumps [itertools](https://github.com/rust-itertools/itertools) from 0.14.0 to 0.15.0.
- [Changelog](https://github.com/rust-itertools/itertools/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-itertools/itertools/compare/v0.14.0...v0.15.0)

---
updated-dependencies:
- dependency-name: itertools
  dependency-version: 0.15.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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