Bump rayon from 1.8.0 to 1.8.1

Bumps [rayon](https://github.com/rayon-rs/rayon) from 1.8.0 to 1.8.1. - [Changelog](https://github.com/rayon-rs/rayon/blob/master/RELEASES.md) - [Commits](rayon-rs/rayon@rayon-core-v1.8.0...rayon-core-v1.8.1) --- updated-dependencies: - dependency-name: rayon dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]