Auto merge of #107638 - zhangyunhao116:pdqsort-rand, r=cuviper

Optimize break patterns

Use `wyrand` instead of calling `XORSHIFT` 2 times in break patterns for the 64-bit platform. The new PRNG is 2x faster than the previous one.

Bench result(via https://gist.github.com/zhangyunhao116/11ef41a150f5c23bb47d86255fbeba89):
```
old                     time:   [1.3258 ns 1.3262 ns 1.3266 ns]
                        change: [+0.5901% +0.6731% +0.7791%] (p = 0.00 < 0.05)
                        Change within noise threshold.
Found 13 outliers among 100 measurements (13.00%)
  7 (7.00%) high mild
  6 (6.00%) high severe

new                     time:   [657.65 ps 657.89 ps 658.18 ps]
                        change: [-1.6910% -1.6110% -1.5256%] (p = 0.00 < 0.05)
                        Performance has improved.
Found 6 outliers among 100 measurements (6.00%)
  2 (2.00%) high mild
  4 (4.00%) high severe
```

Author: bors