Describe the bug
High memory use

To Reproduce
Writer with compressed page with parquet v1

Expected behavior
Less memory use

Additional context

Buffer is not shrink after compression and Bytes don't change memory layout

In my case uncompressed page ~1M and after compression ~20k It's lot of memory wasted

Before change

(3,639,172,424B) 0x41C901F: parquet::column::writer::GenericColumnWriter<E>::add_data_page (mod.rs:1070)
(876,240,384B) 0x41D2F36: parquet::column::writer::GenericColumnWriter<E>::add_data_page (mod.rs:1070)

For output file ~550M