Update ahash to fix yanked version

[itsjunetime]

The version of ahash currently stored in Cargo.lock is yanked from crates.io because it fails to compile. Additionally, this crate fails to compile when installed via cargo install --git because of some weird confusion about which version of gdk-sys to use (I'm not quite certain what's causing that issue), but that issue can be worked around by passing in the --locked flag to the cargo install invocation. However, this also fails to build when using the --locked flag because of that yanked ahash version. So I'm just updating it here so that this crate is installable via cargo install --git.

[terhechte]

Thank You!