2025 benchmark update

[Kobzol]

In 2025, it will be time to refresh and update our benchmarks again, based on our benchmark update policy.

We expect to start the update in spring 2025.

The update policy, and a guide of how to actually update the benchmarks is described here. In short:

1. Download the new benchmark

$ cargo run --bin collector download -c Primary -a <library/binary> crate <name> <version>

2. Commit
3. Copy perf-config.json and .patch files from the old version
4. Add [workspace] to Cargo.toml if it's not already there
5. Modify collector/compile-benchmarks/README.md
6. Modify collector/compile-benchmarks/REUSE.toml
7. Commit
8. Run timings in old and new version and post the results to the PR description

time -p CARGO_INCREMENTAL=0 cargo check ; cargo clean
time -p CARGO_INCREMENTAL=0 cargo build ; cargo clean
time -p CARGO_INCREMENTAL=0 cargo build --release ; cargo clean

[nnethercote]

As per the discussion on Zulip, we're going to wait a little bit and get some ducks lined up in a row before starting on this.