feat: add optimisation for http cache

[nichmor]

• add tests for cache BOM updating

Benchmark: with cache but without Buf Writer and Reader

sudo hyperfine --warmup 3 'cargo run --release -- quetz-server'
Benchmark 1: cargo run --release -- quetz-server
  Time (mean ± σ):      1.826 s ±  0.106 s    [User: 0.455 s, System: 2.784 s]
  Range (min … max):    1.697 s …  2.029 s    10 runs



Benchmark: with cache and with Buf Writer and Reader optimisation

sudo hyperfine --warmup 3 'cargo run --release -- quetz-server'
Benchmark 1: cargo run --release -- quetz-server
  Time (mean ± σ):      1.441 s ±  0.104 s    [User: 0.440 s, System: 0.169 s]
  Range (min … max):    1.270 s …  1.584 s    10 runs

Benchmark: with cache but without Buf Writer and Reader

sudo hyperfine --warmup 3 'cargo run --release -- flask'
Benchmark 1: cargo run --release -- flask
  Time (mean ± σ):      1.379 s ±  0.183 s    [User: 0.201 s, System: 0.274 s]
  Range (min … max):    1.132 s …  1.665 s    10 runs

Benchmark: with cache and with Buf Writer and Reader optimisation

sudo hyperfine --warmup 3 'cargo run --release -- flask'
Benchmark 1: cargo run --release -- flask
  Time (mean ± σ):      1.246 s ±  0.348 s    [User: 0.204 s, System: 0.110 s]
  Range (min … max):    0.963 s …  2.057 s    10 runs

Benchmark: with cache but without Buf Writer and Reader

sudo hyperfine --warmup 3 './target/release/rip flask'
Benchmark 1: ./target/release/rip flask
  Time (mean ± σ):     793.0 ms ± 160.6 ms    [User: 99.6 ms, System: 212.6 ms]
  Range (min … max):   650.0 ms … 1173.9 ms    10 runs
  

Benchmark: with cache and with Buf Writer and Reader optimisation

sudo hyperfine --warmup 3 './target/release/rip flask'
Benchmark 1: ./target/release/rip flask
  Time (mean ± σ):     693.3 ms ± 148.0 ms    [User: 108.2 ms, System: 44.3 ms]
  Range (min … max):   506.9 ms … 949.4 ms    10 runs