Upgrade ahash to 0.8

[Dandandan]

Which issue does this PR close?

Closes #2395

Rationale for this change

Updating dependency, use the hash_one API, get some fixes and a small perf improvement.

What changes are included in this PR?

Are there any user-facing changes?

[tustvold]

 compile_error!("the wasm32-unknown-unknown target is not supported by \
236 | |                         default, you may need to enable the \"js\" feature. \
237 | |                         For more information see: \
238 | |                         https://docs.rs/getrandom/#webassembly-support");

wasm build is failing

[Dandandan]

 compile_error!("the wasm32-unknown-unknown target is not supported by \
236 | |                         default, you may need to enable the \"js\" feature. \
237 | |                         For more information see: \
238 | |                         https://docs.rs/getrandom/#webassembly-support");

wasm build is failing

Thanks, yeah I noticed. Let's see how we can fix this.

[Dandandan]

@tustvold switching to a compile-time rng for wasm helps.

[ursabot]

Benchmark runs are scheduled for baseline = 43c6eb7 and contender = 961cd2a. 961cd2a is a master commit associated with this PR. Results will be available as each benchmark for each run completes.
Conbench compare runs links:
[Skipped ⚠️ Benchmarking of arrow-rs-commits is not supported on ec2-t3-xlarge-us-east-2] ec2-t3-xlarge-us-east-2
[Skipped ⚠️ Benchmarking of arrow-rs-commits is not supported on test-mac-arm] test-mac-arm
[Skipped ⚠️ Benchmarking of arrow-rs-commits is not supported on ursa-i9-9960x] ursa-i9-9960x
[Skipped ⚠️ Benchmarking of arrow-rs-commits is not supported on ursa-thinkcentre-m75q] ursa-thinkcentre-m75q
Buildkite builds:
Supported benchmarks:
ec2-t3-xlarge-us-east-2: Supported benchmark langs: Python, R. Runs only benchmarks with cloud = True
test-mac-arm: Supported benchmark langs: C++, Python, R
ursa-i9-9960x: Supported benchmark langs: Python, R, JavaScript
ursa-thinkcentre-m75q: Supported benchmark langs: C++, Java