To run the benchmarks:
cargo bench
And then open the generated `target/criterion/report/index.html` in a
browser.
- add the BSD 2 clause and ISC licenses to the `cargo deny` allowed
licenses list (as a transitive dependency of the `fakeit` crate).
- remove the WTFPL license from the `cargo deny` allowed licenses list
as it is unused and causes a warning when running the check.
