filter_bits under-allocates resulting boolean buffer

[gatesn]

Describe the bug

The buffer builder is sized as BooleanBufferBuilder::new(bit_util::ceil(predicate.count, 8)), but the new function takes length in bits already, no need for bit_util::ceil:

arrow-rs/arrow-buffer/src/builder/boolean.rs

Line 32 in b1f5c25

let byte_capacity = bit_util::ceil(capacity, 8);

arrow-rs/arrow-select/src/filter.rs

Line 520 in b1f5c25

let mut builder = BooleanBufferBuilder::new(bit_util::ceil(predicate.count, 8));

Expected behavior
Remove bit_util::cel to avoid under-allocating capacity by 8x

[alamb]

label_issue.py automatically added labels {'arrow'} from #6766