Bump fastutil from 8.3.1 to 8.4.0 (#107)
Bump fastutil from 8.3.1 to 8.4.0 (#107)

Bumps [fastutil](https://github.com/vigna/fastutil) from 8.3.1 to 8.4.0.
- [Release notes](https://github.com/vigna/fastutil/releases)
- [Changelog](https://github.com/vigna/fastutil/blob/master/CHANGES)
- [Commits](https://github.com/vigna/fastutil/compare/8.3.1...8.4.0)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>

Co-authored-by: dependabot-preview[bot] <6a4c1c4838f800d1998274cd5234e1f65c55e90c@users.noreply.github.com>
akarnokd/akarnokd-misc,akarnokd/akarnokd-misc