rusqlite now has feature `"fallible_uint"`

https://github.com/rusqlite/rusqlite/blob/v0.38.0/Cargo.toml#L63

```
# u64, usize, NonZeroU64, NonZeroUsize
fallible_uint = []
```

They broke any code using their `FromSql<u64>` trait. Would be good for async-sqlite to add the feature re-export.
