Make compression adaptive with V2 data pages

### Describe the enhancement requested

When writing a V2 data page, it seems that compression is always unconditionally enabled even when compression doesn't actually yield any benefits:
https://github.com/apache/parquet-java/blob/0fea3e1e22fffb0a25193e3efb9a5d090899458a/parquet-hadoop/src/main/java/org/apache/parquet/hadoop/ColumnChunkPageWriteStore.java#L305-L311

It would be relatively easy to use a hardcoded threshold (for example 98%) above which compression is disabled, which makes reading faster.

### Component(s)

Core

Start in parquet-hadoop/src/main/java/org/apache/parquet/hadoop/ColumnChunkPageWriteStore.java at the referenced lines and trace V2 data-page compression handling. Review the relevant existing V2 page-writing tests, then verify that compression is skipped when it provides no meaningful benefit while normal compression remains unchanged.

Written by the indexing model from the issue text.