Upgrade to twox-hash 2.0

[shepmaster]

Thanks for using my crate!

Note that version 2.0 increases the MSRV to Rust 1.81. I understand if you don't want to upgrade right away, but hopefully this PR will be useful when you do.

I'm opening these PRs for the top users of twox-hash and have no current plans to become a consistent contributor to this specific repository; please feel free to rewrite the commit as appropriate for your project's requirements.

[alamb]

Thank you @shepmaster

[Jefffrey]

I don't think this repo currently has a defined MSRV strategy, relevant links:

• Adopt a MSRV policy #181
• Update MSRVs to be accurate #6742

There's time to decide before the next major release of 55.0.0 in Mar 2025 (reference) as this would be a breaking change in bumping the MSRV anyway. By then the latest Rust version should be 1.85.0.

A TODO item before considering this PR for that release would also be running benchmarks for parquet bloom filters. I tried doing this but found the results fluctuated a bit too much for consecutive runs of cargo bench -p parquet bloom (with and without changes); can try again later.

[alamb]

Update is here: apache/datafusion#14045

Sorry wrong ticket 🤦

[alamb]

Thanks to @psvri we (almost) have a MSRv:

• Adopt MSRV policy #7314

Once that merges in I think this PR will be unblocked

[alamb]

I made a new PR to upgrade to resolve some conflicts:

• Upgrade to twox-hash 2.0 #7347

[alamb]

Closed in #6583