Update pubgrub for faster range operations

[konstin]

This update pulls in pubgrub-rs/pubgrub#177, optimizing common range operations in pubgrub. Please refer to this PR for a more extensive description and discussion of the changes.

The changes optimize that last remaining pathological case, bio_embeddings[all] on python 3.12, which has to try 100k versions, from 12s to 3s in the cached case. It should also enable smarter prefetching in batches (#170), even though a naive attempt didn't show better network usage.

before 12s

after 3s

$  taskset -c 0 hyperfine --warmup 1 "../uv/target/profiling/main-uv pip compile ../uv/scripts/requirements/bio_embeddings.in"  "../uv/target/profiling/branch-uv pip compile ../uv/scripts/requirements/bio_embeddings.in"
Benchmark 1: ../uv/target/profiling/main-uv pip compile ../uv/scripts/requirements/bio_embeddings.in
  Time (mean ± σ):     12.321 s ±  0.064 s    [User: 12.014 s, System: 0.300 s]
  Range (min … max):   12.224 s … 12.406 s    10 runs

Benchmark 2: ../uv/target/profiling/branch-uv pip compile ../uv/scripts/requirements/bio_embeddings.in
  Time (mean ± σ):      3.109 s ±  0.004 s    [User: 2.782 s, System: 0.321 s]
  Range (min … max):    3.103 s …  3.116 s    10 runs

Summary
  ../uv/target/profiling/branch-uv pip compile ../uv/scripts/requirements/bio_embeddings.in ran
    3.96 ± 0.02 times faster than ../uv/target/profiling/main-uv pip compile ../uv/scripts/requirements/bio_embeddings.in

It also adds bio_embeddings[all] as a requirements test case.

[charliermarsh]

The changes optimize that last remaining pathological case, bio_embeddings[all] on python 3.12, which has to try 100k versions, from 12s to 3s in the cached case.

Lol