Updated flurry (Cache Performance Improvement)

[NathanielPrescott]

Since Pingora became open sourced I've been experimenting and learning as much as I can, especially from TinyUFO. While messing with TinyUFO I found a comment about not using Rust version 1.71 even though the MSVR is 1.72. I've upgraded the flurry and quick_cache versions and then ran the TinyUFO benches. The results are run using v0.5.1 for each crate, on a arch linux system with an 8 core CPU. I'm not sure how this change would look on a more relevant server setup, but I would be interested in seeing the results.

The bench_hit_ratio and bench_memory look the same or similar enough between both version.

bench_perf (Ops per Second):	Cache Type	Type	0.4.0	0.5.1	diff
lru	single read	27215914	29318238	7.72%
moka	single read	10167350	9408540	-7.46%
quick_cache	single read	33161216	35265832	6.35%
tinyufo	single read	20067244	22591294	12.58%
tinyufo compact	single read	13532442	14353295	6.07%
lru	concurrent read	5536601	6433813	16.21%
moka	concurrent read	12408710	12613696	1.65%
quick_cache	concurrent read	23902774	44858196	87.67%
tinyufo	concurrent read	144783008	173088224	19.55%
tinyufo compact	concurrent read	69050896	75399064	9.19%
lru	mixed read/write	5445493	5493046	0.87%
moka	mixed read/write	13652672	13983480	2.42%
quick_cache	mixed read/write	54678828	91533376	67.40%
tinyufo	mixed read/write	54712464	60108592	9.86%
tinyufo compact	mixed read/write	55222964	59824780	8.33%

As you can see there is a significant increase in performance for TinyUFO, though quick_cache has an absurd increase. Let me know if you have any questions or concerns with updating these crates.

[NathanielPrescott]

Any updates on this one?