`MinHasher32` tests are flaky

**Describe the bug**

`MinHasher32` tests are flaky

```
[info] MinHasher32
[info] - should measure 0.5 similarity in 1024 bytes with < 0.1 error *** FAILED ***
[info]   0.10851063829787233 was not less than 0.1 (MinHasherTest.scala:32)
[info] - should measure 0.8 similarity in 1024 bytes with < 0.1 error
[info] - should measure 1.0 similarity in 1024 bytes with < 0.01 error
```