Build optimized versions of bcrypt and blowfish to speed them up, referencing things like https://github.com/oxidecomputer/omicron/blob/main/Cargo.toml#L981-L982 Password hashing is not a dominating cost, so this doesn't have a significant impact on the overall time, but a lot of tests like `**tranquil-pds::legacy_2fa** **test_legacy_2fa_code_consumed_after_use**` speed up. It goes from 5.6s to 2.7s on my machine.