Fix Nightly Build (upgrade hashbrown)

[KCarretto]

Problem Overview

• hashbrown v0.12.3 (currently locked to) depends on ahash v0.7.7
• ahash v0.7.7 no longer builds on nightly-2024-02-06 due to the feature stdsimd being removed (see this issue)

error[E0635]: unknown feature `stdsimd`
  --> /usr/local/cargo/registry/src/index.crates.io-6f17d22bba15001f/ahash-0.7.7/src/lib.rs:33:42
   |
33 | #![cfg_attr(feature = "stdsimd", feature(stdsimd))]
   |  

• hashbrown v0.14.3 resolves this issue (by upgrading to ahash v0.8.6)

Requested Solution

• Upgrade hashbrown dependency to v0.14.3

[Wendy Yu]

@dtolnay is already working on the upgrade

[David Tolnay]

Fixed in main. @wendy728 would you take care of publishing a release to crates.io? The most recent starlark release still has a dependency on hashbrown 0.12.3 so it's still broken.

[Wendy Yu]

Released starlark-rust v0.12.0